Extend kubectl-operator to list available OLMv1 bundles for install.

[ankitathomas]

Extend kubectl-operator with a list-available command to list the available OLMv1 bundles to install from the currently enabled ClusterCatalogs on cluster, with support for parameters like package, channel, version range/version, catalog label selectors etc.

[github-actions]

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[ankitathomas]

merged as of operator-framework/kubectl-operator#239