wined3d: Track vertex declaration changes on vertex shaders.

wined3d: Track vertex declaration changes on vertex shaders.

If an attribute has type D3DDECLTYPE_D3DCOLOR, the red and blue channels
are swizzled in the shader. Since the attribute is stored in the vertex
declaration and not the vertex shader, it can change by setting a new
vertex declaration. If this happens, we have to recompile the shader
with the swizzling of that specific attribute turned on or off.