Add Iterator pattern

src/IteratorPattern/TVExample/TVEnumerable/SamsungChannelIterator.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace IteratorPattern.TVExample.TVEnumerable
+{
+    public class SamsungChannelIterator : IEnumerator<Channel>
+    {
+        int currPos;
+        TVCableSupplier cableSupplier;
+        public SamsungChannelIterator(TVCableSupplier cableSupplier)
+        {
+            this.cableSupplier = cableSupplier;
+            currPos = -1;
+        }
+
+        public Channel Current { get { return cableSupplier.Channels[currPos]; } }
+
+        object IEnumerator.Current { get { return cableSupplier.Channels[currPos]; } }
+
+        public void Dispose()
+        {
+            
+        }
+
+        public bool MoveNext()
+        {
+            if(currPos < cableSupplier.Channels.Count -1)
+            {
+                currPos++;
+                return true;
+            }
+            return false;
+        }
+
+        public void Reset()
+        {
+            currPos = -1;
+        }
+    }
+}