P.O.R.N PS5

* Add Pocket mode which allows the device to turn the screen
  on when the proximity sensor changes from near to far and
  the screen is currently off.  Use cases are when the user
  takes the device out of their pocket/purse or when the
  device is sitting out and the screen is off the user can
  simply wave their hand a few centimeters away from the
  device to have it turn on and display the notifications.

Change-Id: I1b11979773246b8a7eee3ffcb4991f902e05406e
Signed-off-by: iGio90 <giovanni.rocca.90@gmail.com>