Add in GLSL setting again.

PS and VS making. Untested and won't work for now.

Add in program shader cache files.

Readd NativeVertexFormat stuffs.

Add in PS and VS cache things.

SetShaders in places.

Fixed EFB cache index computations in OpenGL renderer.

The previous computation was very likely to go out of array bounds,
which could result in crashes on EFB access.

Also, the cache size was rounded down instead of up. This is a problem
since EFB_HEIGHT (528) is not a multiple of EFB_CACHE_RECT_SIZE (64).

Source/Plugins/Plugin_VideoOGL/Src/main.cpp

@@ -135,6 +135,7 @@ void InitBackendInfo()
 	g_Config.backend_info.bSupportsDualSourceBlend = false; // supported, but broken
 	g_Config.backend_info.bSupportsFormatReinterpretation = false;
 	g_Config.backend_info.bSupportsPixelLighting = true;
+	g_Config.backend_info.bSupportsGLSL = true;
 
 	// aamodes
 	const char* caamodes[] = {"None", "2x", "4x", "8x", "8x CSAA", "8xQ CSAA", "16x CSAA", "16xQ CSAA"};