[OpinionatedWatcher] Patch/Updates on Add are read as Add calls

[Austin Pond]

When the AddFunc logic in the OpinionatedWatcher contains a Patch or Update to the resource, the finalizer has not yet been added to the resource, so the OpinionatedWatcher reads the update as a resource that was missed (or failed), and propagates it as an Add event instead.

The finalizer is only added after AddFunc succeeds so that it won't be added if the AddFunc logic fails. We should find a way to make sure the OpinionatedWatcher doesn't miscategorize events like this.