[2/2] Lockscreen Notifications

Base: https://gerrit.omnirom.org/#/c/5734/

PS15:
-use our color picker

Change-Id: I32e3d79a6c7198e66c302d751b50341da6466ff7

Conflicts:
	res/xml/lockscreen_notifications.xml
	src/org/omnirom/omnigears/AOSPAL/LockscreenNotifications.java