audio: Add presentation and latency control to IStreamOut

Add the following methods to IStreamOut:
  - get/setAudioDescriptionMixLevel;
  - get/setDualMonoMode;
  - getRecommendedLatencyModes/setLatencyMode;
  - get/setPlaybackRateParameters;
  - selectPresentation.

Add IStreamOutEventCallback interface for async notifications
of the client about playback-related events. This callback
can be provided to IModule.openOutputStream.

Bug: 205884982
Test: atest VtsHalAudioCoreTargetTest
Change-Id: I8974102d232cdd121a53edccbf26c33778a94e5e