Templates was added

Infrastructure/UI/PrimitiveTemplates/IRectangleBeamProperties.cs

@@ -0,0 +1,14 @@
+using StructureHelperCommon.Models.Shapes;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelper.Infrastructure.UI.PrimitiveTemplates
+{
+    public interface IRectangleBeamProperties
+    {
+        IShape Shape { get; }
+    }
+}