implemented a Thread that soley takes care of the CameraPreview
(hopefully)
Layout is now True Fullscreen
TODO: remove "imlements Runnable" & run() in CameraSurface
Commit before deleting Threading-implementation of CameraSurface
changed CameraSurface to not implementing Runnable anymore, now uses the
Callback-methods
Debug-setting in the IntrinsicsDecoder
Output in onPreviewFrame()
fixed a bug that could occur when leaving app
added Touch and Hover methods