[wined3d] Converting Wined3d to use WGL instead of GLX

[Stefan Dösinger]

> If wines WGL implementation is fully implemented then it may be a good idea
> switching to wgl, a wgl implemenatation would also make debugging much
> easier because wined3d can be run under windows to isolate problems.
Wasn't there also the idea of running WineD3D in Vista to allow the new 3D 
Desktop to run with full OpenGL support? I think Oliver mentioned this 
somewhere.

Stefan