audio: Add microphone settings to IModule, IStreamIn

Add 'MicrophoneInfo' and 'MicrophoneDynamicInfo' parcelables.
Add IModule.getMicrophones method.
Add following methods to IStreamIn:
  - getActiveMicrophonesIds;
  - get/setMicrophoneDirection;
  - get/setMicrophoneFieldDimension.

Provide trivial implementations and VTS.

Also slightly refactor port retrieval from ModuleConfig
to unify common queries.

Bug: 205884982
Test: atest VtsHalAudioCoreTargetTest
Change-Id: I472c7733e2a331a67cea613cd9218889eff06a43