* Show dialog when permissions are denied

* Add qr permissions dialog to search dialog fragment

* Add qr permissions dialog to the pairing screen

* Show dialog after permissions have been denied

* Reset focus after denying permissions

* Show dialog after permissions denied in search frag and par frag

* Use shared preferences to store camera permission state

* Move dialog creation into the search controller and add tests

* Dialog controller implementation and test

* Route to intent with correct activity. Set focus when dismissing dialog

* Get preferences in old search