Texture array sample: Added some more textures and documentation.
Texture array sample: Added some more textures and documentation.

jhu-lcsr-forks/ogre,largerussiangames/ogre,nezticle/ogre,nezticle/ogre,jhu-lcsr-forks/ogre,nezticle/ogre,largerussiangames/ogre,vancepym/ogre,vancepym/ogre,largerussiangames/ogre,vancepym/ogre,largerussiangames/ogre,jhu-lcsr-forks/ogre,vancepym/ogre,jhu-lcsr-forks/ogre,nezticle/ogre,jhu-lcsr-forks/ogre,vancepym/ogre