CameraServiceProxy: Add CameraStatsLoggingService, event dumping

- Collect camera usage events (facing, client, duration)
- Create a JobService that triggers roughly daily to dump events

Test: Verify that 'adb shell cmd jobscheduler run android 13254266'
   prints out all camera usage since last run
Bug: 32449509
Change-Id: I13172e6e68f5cdb94685a112c74d270d1dda45bf