resourcemanager: refactor resource map into an abstraction

This CL moves the resource tracking into a new abstraction
ResourceTracker by moving all the related codec from the
ResourceManagerServiceNew into this new class.

Bug: 294886363
Test: atest android.media.misc.cts.ResourceManagerTest
      atest android.media.misc.cts.ResourceManagerMultiTest
      /data/nativetest64/ResourceManagerService_test/ResourceManagerService_test
      /data/nativetest64/ResourceObserverService_test/ResourceObserverService_test
      /data/nativetest64/ServiceLog_test/ServiceLog_test
Change-Id: I0ac5739cbefff3756cc3a9f20a6bc6c0ddd9e732