Merge changes If0d81bb9,I049edd9d,I162ec7f8,I3710c74c,I63511129, ...

* changes:
  Add audio routing tests
  Add unit tests for trackPlayerBase
  Add serialization tests for libaudioclient
  Add audioeffect unit tests
  Add audiotrack unit tests
  Add audiorecord unit tests
  Enable clang format hook for media/libaudioclient/tests