Added ViewController and Shaders to use a GLKView instead of a UIView

Signed-off-by: Richard J Hancock <rjhancock@me.com>
Switched to using the GLKView instead of the AirplayDemoVC

Signed-off-by: Richard J Hancock <rjhancock@me.com>
Missed a few additions

Signed-off-by: Richard J Hancock <rjhancock@me.com>
No idea why I need this but looks important

Signed-off-by: Richard J Hancock <rjhancock@me.com>