Crack calculator was changed

StructureHelperLogics/NdmCalculations/Cracking/StressStateFactorLogic.cs

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+using StructureHelperCommon.Models;
+using StructureHelperCommon.Models.Forces;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelperLogics.NdmCalculations.Cracking
+{
+    public class StressStateFactorLogic : IStressStateFactorLogic
+    {
+        public ForceTuple ForceTuple { get; set; }
+        public IShiftTraceLogger? TraceLogger { get; set; }
+
+        public double GetStressStateFactor()
+        {
+            if (ForceTuple.Nz > 0d)
+            {
+                TraceLogger.AddMessage($"Cross-section is tensioned since Nz = {ForceTuple.Nz}(N)");
+                return 1.2d;
+            }
+            else
+            {
+                TraceLogger.AddMessage($"Cross-section is bent or compressed since Nz = {ForceTuple.Nz}(N)");
+                return 1d;
+            }
+        }
+    }
+}