* Add PWA events to metrics.
Track events for add to homescreen and install.
Map PWA facts to events
* Map component facts to local metrics
Add events pings to fragments
Supress long method for events
Move install event to AC and collect facts
Retrieve fg and bg events from Facts. Do not track intent fg/bg events, only views
* Allow onPause in base fragment to send telemetry for PWA in the external app fragment. Track foreground and bg locally in fenix, and route install and home screen taps from AC facts
* Rebase
Tiger Oakes