Add API methods for adding/clearing compat overrides for multiple apps on release builds

This is important in cases where we want to add/clear overrides for
multiple apps at the same time, without having to make a binder call for
each package and have the compat config save the changes to file and
invalidate the cache each time.

Bug: 199730202
Test: atest FrameworksServicesTests:CompatConfigTest
Test: atest FrameworksServicesTests:PlatformCompatTest
Change-Id: I3b4a3d9db12fdf99eb78c486bdd8e248fff92e50