Add iterative memento example

src/MememntoPattern/IterativeEmployee/EmployeeIterativeExample.cs

@@ -0,0 +1,55 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace MememntoPattern.IterativeEmployee
+{
+    public class EmployeeIterativeExample
+    {
+        public void Run()
+        {
+            Caretaker caretaker = new Caretaker();
+            Employee e = new Employee();
+            e.Name = "Ghiuri";
+            e.Address = "Stairway to heaven";
+
+            Console.WriteLine("First saved address: {0}", e.Address);
+            caretaker.Save(e);
+
+            e.Address = "Highway to hell";
+
+            Console.WriteLine("Second saved address: {0}", e.Address);
+
+            caretaker.Save(e);
+
+            e.Address = "Home of the brave";
+
+            Console.WriteLine("Third saved address: {0}", e.Address);
+
+            caretaker.Save(e);
+
+            e.Address = "Somesing";
+
+            Console.WriteLine("Address before revert: {0}", e.Address);
+
+            caretaker.Revert(e);
+
+            Console.WriteLine("First reverted Address: {0}", e.Address);
+
+            caretaker.Revert(e);
+
+            Console.WriteLine("Second reverted Address: {0}", e.Address);
+
+            caretaker.Revert(e);
+
+            Console.WriteLine("Third reverted Address: {0}", e.Address);
+
+            caretaker.Revert(e);
+
+            Console.WriteLine("Forth reverted Address: {0}", e.Address);
+
+        }
+       
+    }
+}