added Extrude and Polygon classes, still in progress

git-svn-id: svn://anubis/fart/trunk@269 7f9b0f55-74a9-4bce-be96-3c2cd072584d

util/Polygon.cc

@@ -0,0 +1,2 @@
+
+#include "Polygon.h"

util/Polygon.h

@@ -0,0 +1,14 @@
+
+#ifndef POLYGON_H
+#define POLYGON_H
+
+#include <vector>
+
+#include "refptr.h"
+#include "Vector.h"
+
+class Polygon : public std::vector< refptr<Vector> >
+{
+};
+
+#endif