User data for cracks were added

StructureHelperLogics/NdmCalculations/Cracking/SofteningLogics/StabSoftetingLogic.cs

@@ -0,0 +1,24 @@
+using StructureHelperCommon.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelperLogics.NdmCalculations.Cracking
+{
+    public class StabSoftetingLogic : ICrackSofteningLogic
+    {
+        private double stabSofteningValue;
+        public IShiftTraceLogger? TraceLogger { get; set; }
+        public StabSoftetingLogic(double stabSofteningValue)
+        {
+            this.stabSofteningValue = stabSofteningValue;
+        }
+        public double GetSofteningFactor()
+        {
+            TraceLogger?.AddMessage($"Constant value of softening factor PsiS = {stabSofteningValue}");
+            return stabSofteningValue;
+        }
+    }
+}