Reorganize repository to clarify relationship betwen the devworkspace API and devfile 2.0

[davidfestal]

What does this PR do?

This PR restructures the repository in order to:

• Make a clearer distinction between DevWorkspace and Devfile schemas (DevWorkspace is a spec for a K8S-native, API-oriented, cloud workspace specification under the form of a K8S CRD, while Devfile 2.0 is a user-oriented format syntax describing the structure of a cloud workspace, that can be used for a wider range of tools)
• Provide jsonpatch rules to derive the Devfile 2.0 schema from the schema of the workspace structure in the DevWorkspace spec
• Isolate devfile-related elements (readme, jsonpatch rules and Devfile samples) in a dedicated folder,
• Generate all the Json schemas from the DevWorkspace API Go source code, in a single build.sh script
• Allow running the build.sh script in a docker container that already contains the prerequisites,
• Provide a devfile 1.0.0 yaml file at the root of this repository to allow any contributor to test DevWorkspace or Devfile 2.0 samples directly in Hosted Che, using the documentation and completion features based on the generated json schemas of any PR branch.

What issues does this PR fix or reference?

Is your PR tested? Consider putting some instruction how to test your changes

Yes.

In order to test the resulting Devfile 2.0 or DevWorkspace samples in a self-service Che workspace (hosted on che.openshift.io), just click on the button added in this comment

As soon as the workspace is opened, you should be able to open the yaml files in folders samples or devfile-support/samples folders, and get yaml language support based on the Json schemas generated in the schemas folder.

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[benoitf]

would be nice to include in the README the instructions to build

even if it's just

./docker-run.sh build.sh

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[davidfestal]

would be nice to include in the README the instructions to build

even if it's just

./docker-run.sh build.sh

done

[che-osio-probot-app[bot]]

Open Developer Workspace:

[davidfestal]

@amisevsk is it OK for you now.

@l0rd Are you OK to merge this ?

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace:

[che-osio-probot-app[bot]]

Open Developer Workspace: