Add game example to template pattern

src/TemplatePattern/GameExample/Game.cs

@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace TemplatePattern.GameExample
+{
+    public abstract class Game
+    {
+        protected abstract void InitGame();
+
+        protected abstract void StartGame();
+
+        protected abstract void EndGame();
+        
+        public void Play()
+        {
+            InitGame();
+            StartGame();
+            EndGame();
+        }        
+
+    }
+}