Merge gitops and gitrepo controllers

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We're observing conflicts and race conditions between gitopts and gitrepo controllers and, as both handle the same main resource (GitRepo).

Try to merge both controllers into the gitopts one to avoid having this situation.

Functionality that we still have in the gitrepo controller and should be moved:

• Finalizers management
• Purge of orphan bundle and bundledeployment when deleting a gitrepo
• sharding filters
• metrics
• Gitrepo status