OmniGears: add generic color picker preference

Also fixes existing color pickers rotation handling

plus some aosp fixes

Change-Id: I7f3280517aeed9bc70edfbcd69a08e567a6a7366

Conflicts:
	res/values/custom_strings.xml
	src/org/omnirom/omnigears/notificationlight/ApplicationLightPreference.java

Signed-off-by: CullenDev <cullendev@gmail.com>