Settings: Add HeadsUp setting.

Change-Id: Ib7a59145843bedb16aacc87bf6d3c6da143e8d3e

Conflicts:
	res/values/cm_strings.xml
	res/xml/notification_drawer.xml
Move Hover and Heads up into one screen and more

-New notification screen with hover, heads up and notification reminders
-Move notification drawer settings into quick settings screen (renamed Panel settings)
-Remove switches from LSN and PEEK
Settings: remove 'Brightness adjustment' from auto brightness dialog

Change-Id: I4cb4a21012fbc0d257a9beff356004bd34f32c9f
Signed-off-by: Roman Birg <roman@cyngn.com>

Conflicts:
	res/layout/dialog_auto_brightness.xml