Add calling uid and calling package to startBugreport

This is so they can be passed to the consent service which will present
the user with a dialog and get their consent to share the bugreport with
the calling package.

Also update a few TODOs.

BUG: 111441001
Test: builds
Change-Id: I0a72c8e2d697f8a25f307cfce73c8f03ed1746e2