prow v1 release pre-reqs

[upodroid]

We would like to have a released version of Prow.

Important prerequisites:

1. Create a new mailing list called prow-announcements@kubernetes.io and ask all prow users to join.
2. Tag and release what's currently in main as v0.1.0
3. Resolve Remove unneeded prow plugins/cmds #585
4. Make any other breaking changes we want to ship
5. Convert prowjobs.js to a versioned API and serve it like deck/v1/ with kubernetes semantics
6. Dependencies cleanup
7. Deprecate any unneeded components

In terms of the release process:

1. Cut a release in this Git repo
2. We promote images to registry.k8s.io/prow/[COMPONENTS]

[rajibmitra]

/assign