added ssaa and efb scale as separate configurations:

efb scale :
auto fractional: the original scaling way, will grant a 1:1 pixel mapping between efb and screen giving the best image quality even in non standard resolutions
at the cost of glitches in some games.
auto integral: automatic but only int values for the scale, no glitches but only the correct pixel scaling when using some resolutions.
the rest are the fixed scales.
enjoy.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5639 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/VideoCommon/Src/VideoConfig.h

@@ -80,6 +80,7 @@ struct VideoConfig
 	
 	// Enhancements
 	int iMultisampleMode;
+	int iEFBScale;
 	bool bForceFiltering;
 	int iMaxAnisotropy;
 	std::string sPostProcessingShader;