Add Colorpicker to PAC

Based off this commit from SlimRom, https://github.com/SlimRoms/packages_apps_Settings/commit/312052742259b25edd583b58a10d2b973181b74d

Change-Id: Ic656ade902032bdc7fe9d36bd78b1bae870aabda
Signed-off-by: Lokesh Chamane <lokesh.c703@gmail.com>