Intercept automated app launches and show a warning

 - ActivityStartInterceptor logic to replace the intent
 - Detection and warning dialog intent logic in VDM
 - New warning dialog in the VDM app

Bug: 442627126
Flag: android.companion.virtualdevice.flags.automated_app_launch_interception
Test: manual & atest
Change-Id: Ia8bbf51c0d7ff3ecf2e84f0f1a05255dab5a37e5