Carbon Fiber Material was Added

StructureHelperCommon/Models/Shapes/Point2D.cs

@@ -7,5 +7,11 @@
         public double X { get; set; }
         /// <inheritdoc />
         public double Y { get; set; }
+
+        public object Clone()
+        {
+            var point = new Point2D() { X = X, Y = Y };
+            return point;
+        }
     }
 }