[1/5] WineD3D: Get some vertex pipeline infrastructure in place

[Stefan Dösinger]

> Can we fix that? I think I would prefer it if
> primitiveDeclarationConvertToStridedData() handled all that, and just
> returned whether we can use the fast draw function, or have to use the
> slow one.
We never call primitiveDeclarationConverToStridedData() with drawPrimitiveStrided. We could of course add a function that checks the application provided strided data(ie, the very if statement we have here), but I don't think that gains us a lot