Switch to "taskdir" layout

[jchesterpivotal]

Preferred layout for most teams is "taskdir", where each task is defined under tasks with the task YAML and runtime code colocated. Current repo is a mix of task/script separation, with some tasks having inline scripts.

[jchesterpivotal]

• [x] build-faas-cli.yml
• [x] build-java-function-invoker.yml
• [x] config-chart-bucket.yml
• [x] run-riff-system-tests.yml
• [x] build-node-function-invoker.yml
• [x] build-shell-function-invoker.yml
• [x] build-python2-function-invoker.yml
• [x] build-sidecar.yml
• [x] deploy-riff.yml
• [x] tag_docker_image.yml
• [x] build-riff-chart-pr.yml
• [x] build-topic-controller.yml
• [x] publish-crds.yml
• [x] build-http-gateway.yml
• [x] build-riff-chart.yml
• [x] clean-riff-deployment.yml

Changing due to switch to go function controller:

• [x] build-fabric8-model.yml
• [x] build-function-controller.yml
• [x] build-function-controller-go.yml

Definite Orphans:

• [x] release_sk8s_component.yml

Orphans?:

• [x] build-sample-function-containers-java.yml

Stuff overlooked in the rush so far

• [x] Switch riff-pr pipeline
• [x] Switch faas-cli pipeline

[jchesterpivotal]

Misclicked on close.