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
diff --git a/audio/aidl/default/Configuration.cpp b/audio/aidl/default/Configuration.cpp
index a3e5ff7..280814f 100644
--- a/audio/aidl/default/Configuration.cpp
+++ b/audio/aidl/default/Configuration.cpp
@@ -243,6 +243,13 @@
                                  AudioChannelLayout::LAYOUT_MONO, 48000, 0, true,
                                  createDeviceExt(AudioDeviceType::IN_MICROPHONE, 0)));
 
+        MicrophoneInfo mic;
+        mic.id = "zero";
+        mic.device = zeroInDevice.ext.get<AudioPortExt::Tag::device>().device;
+        mic.group = 0;
+        mic.indexInTheGroup = 0;
+        c.microphones = std::vector<MicrophoneInfo>{mic};
+
         AudioPort primaryInMix =
                 createPort(c.nextPortId++, "primary input", 0, true, createPortMixExt(2, 2));
         primaryInMix.profiles.push_back(