CrackWidthCalculator has been added

StructureHelperLogics/NdmCalculations/Cracking/CrackWidthSimpleCalculator.cs

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+using StructureHelperCommon.Models.Calculators;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelperLogics.NdmCalculations.Cracking
+{
+    public class CrackWidthSimpleCalculator : ICalculator
+    {
+        ICrackWidthLogic crackWidthLogic = new CrackWidthLogicSP63();
+        CrackWidthSimpleCalculatorResult result;
+        public string Name { get; set; }
+        public ICrackWidthSimpleCalculatorInputData InputData { get; set; }
+        public IResult Result => result;
+
+
+        public void Run()
+        {
+            result = new() { IsValid = true};
+            var crackWidthLogicType = CrackWidthLogicType.SP63;
+            var logicInputData = CrackWidthLogicInputDataFactory.GetCrackWidthLogicInputData(crackWidthLogicType, InputData);
+            crackWidthLogic.InputData = logicInputData;
+            double crackWidth = 0d;
+            try
+            {
+                crackWidth = crackWidthLogic.GetCrackWidth();
+            }
+            catch (Exception ex)
+            {
+                result.IsValid = false;
+                result.Description += "\n" + ex;
+            }
+            result.RebarPrimitive = InputData.RebarPrimitive;
+            result.CrackWidth = crackWidth;
+            result.RebarStrain = logicInputData.RebarStrain;
+            result.ConcreteStrain = logicInputData.ConcreteStrain;
+        }
+        public object Clone()
+        {
+            throw new NotImplementedException();
+        }
+    }
+}