Finally Merge branch 'videosoftware-xfb'

This adds xfb support to the videosoftware backend, which increases it's
accuracy and more imporantly, enables the usage of many homebrew apps
which write directly to the xfb on the videosoftware backend.

Conflicts:
	Source/Core/VideoBackends/Software/SWRenderer.cpp
	Source/Core/VideoBackends/Software/SWmain.cpp

Source/Core/VideoBackends/Software/SWVideoConfig.h

@@ -22,6 +22,7 @@ struct SWVideoConfig : NonCopyable
 	bool renderToMainframe;
 
 	bool bHwRasterizer;
+	bool bBypassXFB;
 
 	// Emulation features
 	bool bZComploc;