Keyguard: do not allow to delete the system widget if widgets are disabled

We overwrite the default widget with our own one. In this case it is detected
as a normal widget even though it widgets are disabled and starts listening to
longpress events

Whatever check if widgets are disabled. If this is the case do not allow any
longpress events

Change-Id: I471664bac6ca1f8e57efe4904a385904c40486db
frameworks: Custom System Animations

Allows setting of some system animations.

Current List:

Activity Open
Activity Close
Task Open
Task Close
Task Move to front
Task Move to back
Window Open
Window Close
Window Insta Open
Window Insta Close

Duration Controls

Prevent overridePendingTransition option

Change-Id: Id360abe158d36ab85c1c0d0103428d4a8867e70c