Provide events in case of change in rights

I have a usecase where I need to listen to rights changes (right added/updated/deleted) in order to react on them depending on the kind of right change. Right now my only option is to listen on XObjectEvents with the right class, and to analyze what actually happened.

Would be super handy if all this work could be done directly in the extension, which would trigger a proper Right(Added/Deleted/Updated)Event with some data send along like a pair of ReadableSecurityRule (before/after the update) that would allow to directly manipulate the changes.