GLES2: Add a convenience method to get a copy of the render system's GLES2Support
GLES2: Add a convenience method to get a copy of the render system's GLES2Support

--HG--
branch : v1-8

digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre