Make repo compliant - Githubissues

What this PR does / why we need it:

Deleted NOTICE.md file
Updated CONTRIBUTING.md file
Created/Updated LICENSE file
- Deleted LICENSE.md file
Created/Updated .reuse/dep5 file
Created/Updated LICENSES folder
Added badge for reuse compliance in README.md file and registered repo with REUSE API
License/Copyright header replacement for 'non-go' files
- Makefile
- .ci/test
- .ci/build
- .ci/check
- hack/non_gardener_local_setup.sh
- hack/generate-code
- hack/gardener_local_setup.sh
- hack/non_gardener_local_restore.sh
- hack/gardener_local_restore.sh
- hack/tools.mk
- hack/api-reference/generate-spec-doc.sh
License/Copyright header replacement for 'go' files
- hack/tools.go
- hack/api-reference/template/tools.go
- pkg/apis/machine/doc.go
- pkg/apis/machine/install/install.go
- pkg/apis/machine/v1alpha1/shared_types.go
- pkg/apis/machine/v1alpha1/machine_types.go
- pkg/apis/machine/v1alpha1/machineset_types.go
- pkg/apis/machine/v1alpha1/machineclass_types.go
- pkg/apis/machine/v1alpha1/doc.go
- pkg/apis/machine/v1alpha1/machinedeployment_types.go
- pkg/apis/machine/validation/validation_suite_test.go
- pkg/test/integration/common/framework.go
- pkg/test/integration/common/helpers/resources_tracker_interface.go
- pkg/test/integration/common/helpers/machine_resources.go
- pkg/test/integration/common/helpers/handling_files.go
- pkg/test/integration/common/helpers/cluster.go
- pkg/test/integration/common/helpers/nodes.go
- pkg/test/utils/matchers/kubernetes_errors.go
- pkg/test/utils/matchers/deep.go
- pkg/test/utils/matchers/matchers.go
- pkg/util/provider/machinecontroller/machine_safety_util_test.go
- pkg/util/provider/machinecontroller/machine_safety_util.go
- pkg/util/provider/drain/drain_suite_test.go
- pkg/util/time/time_suite_test.go
- pkg/util/annotations/annotations_suite_test.go
- pkg/util/worker/worker.go
- pkg/openapi/doc.go
- pkg/controller/autoscaler/types.go
- pkg/metrics/metrics.go
- pkg/options/types.go
- pkg/apis/machine/register.go
- pkg/apis/machine/types.go
- pkg/apis/machine/v1alpha1/register.go
- pkg/apis/machine/validation/machineset.go
- pkg/apis/machine/validation/machine.go
- pkg/apis/machine/validation/machinedeployment.go
- pkg/util/backoff/backoff_suite_test.go
- pkg/util/backoff/wait_test.go
- pkg/util/strings/string.go
- pkg/util/nodeops/conditions.go
- pkg/util/nodeops/taints.go
- pkg/util/permits/permits_suite_test.go
- pkg/util/permits/permits_test.go
- pkg/util/permits/permits.go
- pkg/util/provider/metrics/metrics.go
- pkg/util/provider/options/types.go
- pkg/util/provider/machinecontroller/controller.go
- pkg/util/provider/machinecontroller/metrics.go
- pkg/util/provider/machinecontroller/machine_safety_test.go
- pkg/util/provider/machinecontroller/secret_util.go
- pkg/util/provider/machinecontroller/machineclass_util.go
- pkg/util/provider/machinecontroller/machine_test.go
- pkg/util/provider/machinecontroller/secret.go
- pkg/util/provider/machinecontroller/machineclass_test.go
- pkg/util/provider/machinecontroller/machine_util_test.go
- pkg/util/provider/machinecontroller/machineclass.go
- pkg/util/provider/machinecontroller/machine_safety.go
- pkg/util/provider/machinecontroller/secret_test.go
- pkg/util/provider/machinecontroller/machine.go
- pkg/util/provider/machinecontroller/controller_suite_test.go
- pkg/util/provider/machinecontroller/node.go
- pkg/util/provider/cache/cache.go
- pkg/util/provider/driver/fake.go
- pkg/util/provider/driver/driver.go
- pkg/util/provider/machineutils/utils.go
- pkg/util/clientbuilder/machine/client_builder.go
- pkg/util/time/time.go
- pkg/util/time/time_test.go
- pkg/util/annotations/annotations_test.go
- pkg/util/annotations/annotations.go
- pkg/util/k8sutils/version.go
- pkg/util/k8sutils/helper.go
- pkg/features/machine_features.go
- pkg/controller/deployment_sync_test.go
- pkg/controller/deployment_util_test.go
- pkg/controller/controller.go
- pkg/controller/metrics.go
- pkg/controller/controller_utils_test.go
- pkg/controller/machineset_test.go
- pkg/controller/deployment_rollback_test.go
- pkg/controller/machine_safety.go
- pkg/controller/controller_suite_test.go
- pkg/controller/deployment_test.go
- pkg/controller/deployment_rolling_test.go
- pkg/fakeclient/client.go
- cmd/machine-controller-manager/controller_manager.go
- cmd/machine-controller-manager/app/controllermanager.go
- cmd/machine-controller-manager/app/options/options.go
- pkg/options/helpers.go
- pkg/util/backoff/wait.go
- pkg/util/reflector/prometheus/prometheus.go
- pkg/util/workqueue/prometheus/prometheus.go
- pkg/util/hash/hash_test.go
- pkg/util/hash/hash.go
- pkg/util/labels/labels.go
- pkg/util/labels/labels_test.go
- pkg/util/provider/options/helpers.go
- pkg/util/provider/machinecontroller/machine_util.go
- pkg/util/provider/machinecontroller/machine_bootstrap_token.go
- pkg/util/provider/app/app.go
- pkg/util/provider/app/options/options.go
- pkg/util/provider/drain/drain_test.go
- pkg/util/provider/drain/fake_controller.go
- pkg/util/provider/drain/util.go
- pkg/util/provider/drain/volume_attachment.go
- pkg/util/provider/drain/drain.go
- pkg/util/provider/machinecodes/status/status.go
- pkg/util/provider/machinecodes/codes/codes.go
- pkg/util/provider/machinecodes/codes/code_string.go
- pkg/util/clientbuilder/core/client_builder.go
- pkg/util/configz/configz.go
- pkg/util/configz/configz_test.go
- pkg/util/taints/taints_test.go
- pkg/util/taints/taints.go
- pkg/util/client/metrics/prometheus/prometheus.go
- pkg/util/client/leaderelectionconfig/config.go
- pkg/controller/deployment.go
- pkg/controller/deployment_machineset_util.go
- pkg/controller/deployment_progress.go
- pkg/controller/controller_ref_manager.go
- pkg/controller/machineset_util.go
- pkg/controller/deployment_recreate.go
- pkg/controller/machineset.go
- pkg/controller/deployment_sync.go
- pkg/controller/deployment_rollback.go
- pkg/controller/controller_utils.go
- pkg/controller/deployment_rolling.go
- pkg/controller/deployment_util.go
- pkg/client/informers/internalversion/factory.go
- pkg/client/informers/internalversion/generic.go
- pkg/client/informers/internalversion/internalinterfaces/factory_interfaces.go
- pkg/client/informers/internalversion/machine/interface.go
- pkg/client/informers/internalversion/machine/internalversion/interface.go
- pkg/client/informers/internalversion/machine/internalversion/machinetemplate.go
- pkg/client/informers/internalversion/machine/internalversion/machineset.go
- pkg/client/informers/internalversion/machine/internalversion/machineclass.go
- pkg/client/informers/internalversion/machine/internalversion/machine.go
- pkg/client/informers/internalversion/machine/internalversion/machinedeployment.go
- pkg/client/listers/machine/internalversion/machinetemplate.go
- pkg/client/listers/machine/internalversion/machineset.go
- pkg/client/listers/machine/internalversion/machineclass.go
- pkg/client/listers/machine/internalversion/machine.go
- pkg/client/listers/machine/internalversion/machinedeployment.go
- pkg/client/listers/machine/internalversion/expansion_generated.go
- pkg/client/clientset/internalversion/clientset.go
- pkg/client/clientset/internalversion/doc.go
- pkg/client/clientset/internalversion/scheme/register.go
- pkg/client/clientset/internalversion/scheme/doc.go
- pkg/client/clientset/internalversion/typed/machine/internalversion/machine_client.go
- pkg/client/clientset/internalversion/typed/machine/internalversion/generated_expansion.go
- pkg/client/clientset/internalversion/typed/machine/internalversion/machinetemplate.go
- pkg/client/clientset/internalversion/typed/machine/internalversion/machineset.go
- pkg/client/clientset/internalversion/typed/machine/internalversion/doc.go
- pkg/client/clientset/internalversion/typed/machine/internalversion/machineclass.go
- pkg/client/clientset/internalversion/typed/machine/internalversion/machine.go
- pkg/client/clientset/internalversion/typed/machine/internalversion/machinedeployment.go
- pkg/client/clientset/internalversion/typed/machine/internalversion/fake/fake_machinetemplate.go
- pkg/client/clientset/internalversion/typed/machine/internalversion/fake/fake_machine_client.go
- pkg/client/clientset/internalversion/typed/machine/internalversion/fake/fake_machineclass.go
- pkg/client/clientset/internalversion/typed/machine/internalversion/fake/doc.go
- pkg/client/clientset/internalversion/typed/machine/internalversion/fake/fake_machineset.go
- pkg/client/clientset/internalversion/typed/machine/internalversion/fake/fake_machine.go
- pkg/client/clientset/internalversion/typed/machine/internalversion/fake/fake_machinedeployment.go
- pkg/client/clientset/internalversion/typed/machine/internalversion/fake/fake_gcpmachineclass.go
- pkg/client/clientset/internalversion/fake/register.go
- pkg/client/clientset/internalversion/fake/clientset_generated.go
- pkg/client/clientset/internalversion/fake/doc.go
- pkg/handlers/health.go
- pkg/handlers/health_test.go

Additional information

To keep this repository compliant, CODEOWNERS must maintain their third party dependencies in the vendor folder using .reuse/dep5 file. To prevent constant maintenance effort, it is highly recommended to remove the vendor folder. In this case no third party dependencies of the vendor folder must be maintained anymore!
NOTICE.md is deleted. If third-party source code is copied, the license/copyright headers must be kept and the copied files should be maintained in .reuse/dep5 file under the section copied source code.
make generate did not generate code for the client in packages pkg/client/informers/*, pkg/client/listers/* and pkg/client/clientset/*. The headers of those generated files are nonetheless modified

gardener / machine-controller-manager

Make repo compliant #900