Bringing basic Pie controls to CyanogenMod. (2/2)

This is the settings part of the pie commit, for the real implementation
look in frameworks/base.

Patch Set 3:
* CyanogenMod Code Style

Patch Set 4:
* Strings cleanup
* Better integration into CyanogenMod system settings UX
* Some related cleanup in SysteSettings.java

Patch Set 5 and 6:
* Rename feature to Quick controls to match AOSP terminology

Patch Set 7:
* Remove WIP

Patch Set 8:
* Revert name to Pie controls

Patch Set 11:
* Fix broken revert
* Fix spelling of search

Change-Id: I47599316273d8e46017f49ba62a02cc55a785678