Disable screen dimming when charging (1/2), new setting to disable screen dimming if stay awake is enabled, thanks @maxwen

Original Commit: https://github.com/AICP/frameworks_base/commit/361b5bbde1560deab76c634b0768f02aefaf39f5

PS3: fix derps but it still doesent compile
PS4: fix build

Conflicts:
	core/java/android/provider/Settings.java
	services/java/com/android/server/power/PowerManagerService.java

Change-Id: I987bc0efc89a7dba6ae8d77e5c867d73f7f35408