Filenames used by the animation are now stored and used to properly unload the object data it uses upon deletion.
Specular lighting is no longer used by the Terrain.fx
Animated mesh shadows should now be properly culled like the rest.
Clarified warning message in ResourceManager's destructor.
skybox's constructor now sets the filename to "skybox_unused" since it doesn't use an object file. (This to clarify/make the the debugdata understandable)
Added object type in the GBuffers (Position.w-coordinate).
Added some code for grass.

Signed-off-by: Markus Tillman <reetopps6@hotmail.com>