settings: add scale down crt animation - thanks a ton to xploidwild

really nice idea...fits perfectly into our animation options
for CRT

reword the different modes

Change-Id: I07a32b4cbfe956010507f5c8eddc92c2df395815

Conflicts:
	res/values/slim_arrays.xml
	res/values/slim_strings.xml
Merge branch 'kitkat' of github.com:ModdedPA/android_packages_apps_Settings into kitkat