HeadsUp: Add heads up blacklist options. (1/2)
HeadsUp: Fix resetHeadsUpDecayTimer.

    - If user has forced immersive mode through expanded desktop,
    we shouldn't hide the heads up notification quickly.

Signed-off-by: Roman Birg <roman@cyngn.com>
Signed-off-by: Adnan Begovic <adnan@cyngn.com>

Change-Id: I6ac015ce5c28216cafd3ce96f8d1993495b26897
HeadsUp: Filter out notifications from system uid packages.

    - Settings is very spammy in its notifications, so lets
    just ignore them.

Change-Id: Ic269e8727efb2021d76cccecb9f7e555034d1925