Force crack calculator was fixed

StructureHelperCommon/Models/Calculators/IFindParameterCalculatorInputData.cs

@@ -0,0 +1,23 @@
+using System;
+
+namespace StructureHelperCommon.Models.Calculators
+{
+    /// <summary>
+    /// Input data for calculators of finding parameters
+    /// </summary>
+    public interface IFindParameterCalculatorInputData : IInputData
+    {
+        /// <summary>
+        /// Start value of range where parameter looking for
+        /// </summary>
+        double StartValue { get; set; }
+        /// <summary>
+        /// End value of range where parameter looking for
+        /// </summary>
+        double EndValue { get; set; }
+        /// <summary>
+        /// Predicate for checking parameter for true;
+        /// </summary>
+        Predicate<double> Predicate { get; set; }
+    }
+}