Add capture timestamp field to AIDL recognition event

- Add RecognitionEventSys to encapsulate HAL AIDL type plus framework extras

Bug: 265852186
Test: atest CtsVoiceInteractionHostTestCases
Test: atest FrameworksVoiceInteractionTests
Change-Id: Idd3dc44b89ea7cc8692ed5d9e6b7f4bb753a9eb6
19 files changed