Draft: Use external exclusion lists
This has multiple advantages:
- exclusion lists are branched/versioned together with the application
- changes to the exclusion list can be tested in MRs with the actual packages
@vonreth does this make sense/would this work? If so, I think it's an improvement at least for the Android apps with very aggressive custom exclusion lists.
Draft as I haven't actually copied the current exclusion list to the Itinerary repository.