Add component tag for layouts (for custom or basic backgrounds).

Source/Graphics/Component/Container.h

@@ -0,0 +1,18 @@
+/* This file is subject to the terms and conditions defined in
+ * file 'LICENSE.txt', which is part of this source code package.
+ */
+#pragma once
+
+#include "Component.h"
+#include <SDL2/SDL.h>
+#include <string>
+
+class Container : public Component
+{
+public:
+    Container();
+    virtual ~Container();
+    void FreeGraphicsMemory();
+    void AllocateGraphicsMemory();
+    void Draw();
+};