Add AppOptimizationModeEventsUtils to save & update app optimization mode expiration events.

- [Update] Save app optimizaiton mode set & expire events from turbo.
- [Reset ] Restore optimization mode for expired events in Periodic job.
- [Delete] Cancel expiration event if user updates mode in app usage page.

Bug: 338965652
Test: atest + manual
Change-Id: I3fb7311207da1bdb1146ea1ff041aca6adb66052