settings: add back notification shortcuts + slim classes we need

this will add back slims notification shorcuts feature as well
we add common slim classes we use for navbar navring pie etc
see fb commit for more details

Conflicts:
	res/values/slim_arrays.xml
	res/values/slim_strings.xml
	res/xml/slim_navigation_settings.xml
	src/com/android/settings/slim/dslv/ButtonsListViewSettings.java
	src/com/android/settings/slim/fragments/NotificationsShortcutFragment.java

Change-Id: I658033489af9cbd7ca9b43617a17414298e6d6c9