add dslv controller

a lot of our settings have drag swipe features
this is the central controller for it to have
easy access

Change-Id: I9eb9849f2585510649f49c75915b0c7f3c508fdd
Settings: add central slim ActionListViewSettings class back...

as well shortcutpicker helper and several other stuff which is needed
for nearly every feature we have regarding navigation or shortcuts.

Imported from kk

changes:
- Renaming to be inline with fwb part
- code cleanup
- disabled code where features are not present till now

NOTE: This patch from graphics group is needed as well
      https://gerrit.slimroms.net/#/c/19987/2

Change-Id: I7b01e9ff685880c892807a8048aefad5af0c96b1

Conflicts:
	res/values/screwd_arrays.xml
	res/values/screwd_strings.xml
Settings: materialize grabber icon

Change-Id: I74908674c8d6b5e5f3fbca8e54778c8d9d9dd6b7
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

Due that the methods to inject external settings have changed on lp due of
the dashboard we reintroduce a simply meta data preference method which can setup
on wherever sub settings screen an entry with title and summary.

Change-Id: I82f5a8a4075f109419b08014ad2d723bf2f54402

Conflicts:
	res/values/screwd_strings.xml
	src/com/android/settings/DisplaySettings.java
Settings: add a default slim actions array

Change-Id: Icb6725834c83f4e64964f8d5b7d6a06c16260a49

Conflicts:
	res/values/screwd_arrays.xml
Settings: add default slim actions for screen off gestures

Change-Id: Ia7c59308d7ea0b8764e3a9e181625d08834a3881

Conflicts:
	res/values/screwd_arrays.xml
Settings: Materialize DSLV

Change-Id: I8efe75ee2b571136a7983b9a0b36090294650c80

Conflicts:
	res/values/screwd_strings.xml