Add cflinuxfs4 compatibility bosh release

[beyhan]

The cflinuxfs4 compatibility bosh release deploys the cflinuxfs4 rootfs. The compatibility release includes Ruby and Python as decided in the RFC Proposal for Ruby and Python Removal from the cflinuxfs4 Stack with a Deprecation Period. This depends on https://github.com/cloudfoundry/community/pull/590

[cunnie]

@beyhan @rkoster : could you please revert this commit temporarily until the repo has > 0 commits; when a Concourse git resource attempts to fetch this, it causes the resource check to error with following:

selected worker: 4c01a77b-89e5-47ed-896a-927035daad4f
fatal: ambiguous argument 'FETCH_HEAD': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'

Alternatively, you could add a single commit to https://github.com/cloudfoundry/cflinuxfs4-compat-release, which should also fix this issue.

This error makes the resource-check red, which renders our pipeline not-green, and makes us dig into why.

[rkoster]

Done: https://github.com/cloudfoundry/cflinuxfs4-compat-release/commit/4624b02af4446bf3d992951d4cd2ad849c0d4d13

[beyhan]

Thanks @cunnie & @rkoster!