Interpolation View for calculation result was added

Windows/ViewModels/Materials/ISafetyFactorViewModel.cs

@@ -0,0 +1,15 @@
+using StructureHelper.Infrastructure;
+using StructureHelperCommon.Models.Materials.Libraries;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelper.Windows.ViewModels.Materials
+{
+    internal interface ISafetyFactorViewModel<TItem> : ICRUDViewModel<TItem>
+    {
+        RelayCommand ShowPartialFactors { get; }
+    }
+}