[1/5] WineD3D: Make the blit -> flip work for windowed rendering

[Stefan Dösinger]

This patch needs patch 5 from the former patchset which hasn't been applied 
yet.

Note that the copy swapeffect is not yet supported by present, so apps that 
depend on the back buffer content will get problems. But this patch unifies 
this problem for all d3d versions so a copy swap has to be implemented in 
swapchain::present only.
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