Clean and Comment OgreOculusRender class. Add switchable FullScreen mode
Finaly delete the old distortion shader container.
Annwvyn applications doesn't requier the loading the distortion shader program
for correcting the lens distortion since we use the SDK renderer.

note 0.4.1 SDK Still have OpenGL issues.
Merge branch 'master' of https://github.com/Ybalrid/Annwvyn into 0.4