Override all transitions from package start

When launching a notification, often the launch goes into a
service, broadcast or trampoline activity that starts another
activity, for which we loose the ability to control the animation
because we don't provide the activity options anymore.

This CL adds the ability to override all activity launches
originating from a certain package for a couple of seconds, such
that we have the ability to still control the animation from
SystemUI.

Test: go/wm-smoke
Test: Start stopwatch, press home, press notification
Test: atest PendingRemoteAnimationRegistryTest
Change-Id: I4d077c4ac4565f060e849e4b33920d2bf4a80d48