Add calculators saving

StructureHelperLogics/NdmCalculations/Primitives/IPointNdmPrimitive.cs

@@ -0,0 +1,17 @@
+using StructureHelperCommon.Models.Shapes;
+using StructureHelperLogics.Models.Primitives;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelperLogics.NdmCalculations.Primitives
+{
+    /// <summary>
+    /// Geometry primitive of point
+    /// </summary>
+    public interface IPointNdmPrimitive : INdmPrimitive, IPointShape
+    {
+    }
+}