Add function decorator pattern

StructureHelperCommon/Models/Functions/TableFunction.cs

@@ -0,0 +1,40 @@
+using StructureHelperCommon.Infrastructures.Enums;
+using StructureHelperCommon.Infrastructures.Interfaces;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelperCommon.Models.Functions
+{
+    public class TableFunction : IOneVariableFunction
+    {
+        public FunctionType Type { get; set; }
+        public string Name { get; set; }
+
+        public bool Check()
+        {
+            throw new NotImplementedException();
+        }
+        public double GetByX(double xValue)
+        {
+            throw new NotImplementedException();
+        }
+    }
+
+    public class CopyOfTableFunction : IOneVariableFunction
+    {
+        public FunctionType Type { get; set; }
+        public string Name { get; set; }
+
+        public bool Check()
+        {
+            throw new NotImplementedException();
+        }
+        public double GetByX(double xValue)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}