fix bug when rasterfont disappears sometimes

Source/Plugins/Plugin_VideoOGL/Src/Render.h

@@ -14,6 +14,9 @@ class Renderer : public ::Renderer
 public:
 	Renderer();
 	~Renderer();
+	
+	static void Init();
+	static void Shutdown();
 
 	void SetColorMask();
 	void SetBlendMode(bool forceUpdate);