Change convert strategies to save xls imported forces

StructureHelperCommon/Models/Forces/IColumnFileProperty.cs

@@ -0,0 +1,32 @@
+using StructureHelperCommon.Infrastructures.Interfaces;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelperCommon.Models.Forces
+{
+    /// <summary>
+    /// Settingth for column reading from MSExcel file
+    /// </summary>
+    public interface IColumnFileProperty : ISaveable, ICloneable
+    {
+        /// <summary>
+        /// Name of column
+        /// </summary>
+        string Name { get; set; }
+        /// <summary>
+        /// Name of column for searching 
+        /// </summary>
+        string SearchingName { get; set; }
+        /// <summary>
+        /// Column index
+        /// </summary>
+        int Index { get; set; }
+        /// <summary>
+        /// Factor for obtaining value from column
+        /// </summary>
+        double Factor { get; set; }
+    }
+}