WineD3D: proper CheckDeviceType / CheckDepthStencilMatch support

[Roderick Colenbrander]

Hi,

This patch fixes CheckDeviceType / CheckDepthStencilMatch. Both have 
been 'stubs' for a while. This patch properly fixes them. In order to not 
depend on a fake GL context (which can cause multithreading issues) the 
pixelformats are cached inside the adapter. Further this also fix bug 9255.

Regards,
Roderick Colenbrander
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