upload complete uniform buffer at once

this is the way of dx11. it would upload more per draw, but uses less calls.
will be faster if many uniforms are changed, but slower else

Source/Plugins/Plugin_VideoOGL/Src/VertexManager.cpp

@@ -208,6 +208,7 @@ void VertexManager::vFlush()
 	// set global constants
 	VertexShaderManager::SetConstants();
 	PixelShaderManager::SetConstants();
+	ProgramShaderCache::UploadConstants();
 	
 	// setup the pointers
 	if (g_nativeVertexFmt)