add SceneGraph/SceneTreeToRenderList.cpp, GPUDataArray.h, SceneRoot.h

inc/hgl/graph/SceneRoot.h

@@ -0,0 +1,23 @@
+#ifndef HGL_GRAPH_SCENE_ROOT_INCLUDE
+#define HGL_GRAPH_SCENE_ROOT_INCLUDE
+
+#include<hgl/graph/Camera.h>
+
+namespace hgl
+{
+    namespace graph
+    {
+        /**
+         * 场景根节点
+         */
+        class SceneRoot
+        {
+            Camera *camera;                                                     ///<根相机
+
+        public:
+
+            
+        };//class SceneRoot
+    }//namespace graph
+}//namespace hgl
+#endif//HGL_GRAPH_SCENE_ROOT_INCLUDE