Add CompatScaleProvider interface

Currently TV, and game service have their specific code in core
framework which is shared with all the platforms.
Adding CompatScaleProvider interface so that the per service logic
can move out of core framework.

Bug: 291638620
Test: atest WmTests:CompatScaleProviderTest
Change-Id: I14cc656a50386b07e31811173e735dbe41324d7c