[CTS] Add test for speaker Id egress for hds and vqds

Add unit and integration test for speaker Id egress for
HotwordDetectionService and VisualQueryDetectionService.

Bug: 318617199
Test: atest CtsVoiceInteractionTestCases
Flag: FLAG_ALLOW_SPEAKER_ID_EGRESS, FLAG_ALLOW_COMPLEX_RESULTS_EGRESS_FROM_VQDS
Change-Id: I4fda5562fe9c13046fa4a7facee1324b56544505
2 files changed