Add polygon shape

StructureHelperCommon/Models/Shapes/Vertex.cs

@@ -0,0 +1,19 @@
+using StructureHelperCommon.Infrastructures.Exceptions;
+using System;
+
+namespace StructureHelperCommon.Models.Shapes
+{
+    public class Vertex : IVertex
+    {
+        public Guid Id { get; }
+
+        public Vertex(Guid id)
+        {
+            Id = id;
+        }
+
+        public IPoint2D Point { get; set; }
+
+    }
+
+}