filled video.xml with VideoView
added permissions to use camera and write to external storage
added uses-feature for hardware camera but set required to false to say
that it only prefers if camera is there .So that other features of the
app can still be used
removed VideoView and added surface view
* got reference to SurfaceView and SurfaceViewHolder in the
VideoFragment	
* added SurfaceViewHolder.Callback to teh SurfaceViewHolder and I am
currently implementing the callback methods
fixed misplaced methods in SufrfaceViewHolder.Callback
* Camera working
* Camera running on UI thread -> FIX THIS
* Added uses feature for front camera
* Made front facing camera work
* FIX THIS : Front facing camera orientation is wrong