ASM Rule and Debug Updates.

This change updates ASM rules based on gathered data, and improves debug
information.

1. An activity in the background can fire a PendingIntent, with affinity
   for an existing task. The BAL code is BAL_BLOCK, but is not blocked
   by BAL rules due to the affinity. We now also allow this case for ASM
   by checking avoidMoveToFront.

2. An actiivty can launch multiple GrantPermissionActitities in quick
   succession. If the launcher is visible, this was allowed. However, if
   the launcher was not (e.g, a URIHandler redirect), it would be
   blocked by ASM. We now allow it in the redirect case as well by
   considering the visibiltiy of all activities in the task.

Bug: 230590090
Test: atest BackgroundActivityLaunchTest ActivitySecurityModelTest
Change-Id: I221620ec35f4ddee1425beaa2898d85389cccdae