The CLI version command should also report the operator version

[michaelpnash]

When executing kubectl cloudflow version the CLI should also query the cluster for the version of the operator(s) installed and report that along with the client version.

The Cloudflow operator is labelled with its own version so the CLI can just find the operator, which it should check for at any case to make sure the cluster has the operator installed, and report itspipelines.lightbend.com/build-number(or the Cloudflow equivalent) label.

Any other versions that would be useful to the user should also be retrieved/provided and returned.