[1/2] Settings: HALO

Add custom color.

Change-Id: Idea298c6c89b7dc3836527451f6aba6a338c62eb

Conflicts:
	res/layout/dialog_color_picker.xml
	res/values/colors.xml
	res/values/pa_strings.xml
	src/com/android/settings/paranoid/Halo.java