Some work on merging the video plugins: Added a new plugin to the solution(shouldn't build by default) which combines the DX9, DX11, and OGL plugins with their common code merged (and some things temporarily removed). In it's current state the plugin is hardly usable. Perhaps someone with knowledge of the video plugins will be able to fix the things I have broken more easily than me(or point me in the right direction). I will continue to work on it as well.

Main Issues:
DX11 is functional with a ~2MB/s mem leak.
OpenGL/DirectX9 have a black display while game runs. (DirectX 9 flashes good display on emulation stop)
Too many virtual function calls. (once everything is working, I will work on removing them)
Won't build on non-Windows in its current state. (mainly EmuWindow will need changes for Linux/OS X)
Probably other stuff.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6219 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/VideoCommon/Src/VideoCommon.h

@@ -124,7 +124,7 @@ struct TargetRectangle : public MathUtil::Rectangle<int>
 {
 #ifdef _WIN32
 	// Only used by D3D plugin.
-	const RECT *AsRECT() {
+	const RECT *AsRECT() const {
 		// The types are binary compatible so this works.
 		return (const RECT *)this;
 	}