[ADI][1/N] APIs of verification service, session and status

+ APIs for VerifierService, VerificationSession, VerificationStatus
+ AIDL interfaces for binder communication
+ Unit testing

BUG: 360129103
FLAG: android.content.pm.verification_service
Test: atest FrameworksCoreTests:android.content.pm.verify.VerificationSessionTest
Test: atest FrameworksCoreTests:android.content.pm.verify.VerificationStatusTest
Test: atest FrameworksCoreTests:android.content.pm.verify.VerifierServiceTest
Test: cts tests to be added
API-Coverage-Bug: 420966373

Reverted changes: /q/submissionid:30469933-revert_verification_service_main

Merged-In: I1abefbcf0cea341a153409ce89625c4a671f22ab
Change-Id: I1abefbcf0cea341a153409ce89625c4a671f22ab