Settings: add new slim actions

add central strings and array for it

Change-Id: I68b2a5176fd0106c10c533242f5b41d5935c9e0a

Conflicts:
	res/values/slim_strings.xml
Settings: allow device trees to invoke custom display settings

in this case gesture control settings.

Intent used: com.slim.action.LAUNCH_SCREEN_OFF_GESTURE_SETTINGS

Change-Id: I82f5a8a4075f109419b08014ad2d723bf2f54402

Conflicts:
	res/values/slim_strings.xml
	res/xml/display_settings.xml
	src/com/android/settings/DisplaySettings.java
HeadsUp: option to launch in floating window (2/2)

Conflicts:
	res/values/liquid_strings.xml

Change-Id: I89ae127c5f6f26fd1e6be99f160615d51b29e520

Conflicts:
	res/values/crom_strings.xml