QuickSettings: Update all QS drawables to fit KitKat

- Recolored all drawables according to the new color theme
- Recreated some drawables to be able to include all in xxhdpi
- Remove some unused drawables

Change-Id: Ib5430059f67ff73677821122b8f2037094ba90c5

Patchset: 8
http://review.cyanogenmod.org/#/c/53724/