patch applied (packages/OpenGL): Added support for ARB_depth_buffer_float

[Sven Panne]

Sat May  9 06:47:19 PDT 2009  Sven Panne <sven.panne at aedion.de>
  * Added support for ARB_depth_buffer_float
  Ignore-this: 1d8870ee9020549ad38b9e7a3309a418

    M ./Graphics/Rendering/OpenGL.hs +1
    M ./Graphics/Rendering/OpenGL/GL/DataType.hs +3
    M ./Graphics/Rendering/OpenGL/GL/Texturing/PixelInternalFormat.hs +6

View patch online:
http://darcs.haskell.org/packages/OpenGL/_darcs/patches/20090509134719-bbc36-4b46e8b21a1e4f67b543395ffdd66c51a322ac00.gz