Don't log out 'camera component is null' if input ptr is null no purpouse to reset any active camera.
Ogre Instancing: Add draw debug for instancing via script exposed property/slots. Add function that can set mesh refs instances as static, this can boost performance quite a bit but is hard to automatically detect (if static any movement wont be updated) so lets leave it to script logic to tell the rendering what instance meshes wont be touched. Improve destroying instances so that the manager gets cleared once it has 0 instances left.
Ogre Instancing: Add HWInstancingBasic .cg, .material and .program. Separated from the supershader for now.
Ogre Instancing: Add example scene that can cover wide range of things to test performance with both instancing on and off and toggling static instancing.