dx8 (mostly texture related) patch

[Ann and Jason Edmeades]

This patch makes the code the best so far and fixes a number of problems

Changelog
- Initialize the texture state information
- Add dummy textures so texture operations which dont reference the texture
can work
- Support 2d and 3d textures properly
- Reapply the texture state information as textures get set, as opengl
stores the state along with the bound texture whereas directx uses the
current state information during the draw stage.
- 3rd attempt to sort out lighting, for programs which dont set normals
- Temporarily silence some unnecessary fixmes

Note the fixmes are silenced because I have made the default texture and
render states according to the docs, but some of them are not supported
(yet) and often harmless. Each time a texture is changed, I reapply all the
states and continually get the fixmes.

Once more of the states are supported, I will revert back to a fixme for the
ones which are left

Jason
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