added shape definitions into parser, not using them yet

git-svn-id: svn://anubis/fart/trunk@283 7f9b0f55-74a9-4bce-be96-3c2cd072584d

main/Scene.h

@@ -90,6 +90,7 @@ class Scene
 
         /* private data */
         std::vector< refptr<Shape> > m_shapes;
+        std::vector< refptr<Shape> > m_shape_definitions;
         std::vector< refptr<Light> > m_lights;
         std::stack<Transform> m_transforms;
         double m_view_plane_dist;