NotificationHelper: Create broadcast receiver for Peek app

Change-Id: I9a5e2ddc4db10746203972e4f024d31344f82727
[1/2] Prepare NotificationManagerService for new format

* Needed for blacklisting

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
Change-Id: I7801d65016aa949a5e2406e00871229a602829b9
Apps: Add blacklist interface [1/2]

Include peek and floating mode implementations.
Applies to every floating mode launch way.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
Change-Id: Ica523625c9061cf9c8d6c3d7df4acf6a125c4ead
Blacklist

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java