added composite sample

composite/src/main/java/com/iluwatar/App.java

@@ -0,0 +1,21 @@
+package com.iluwatar;
+
+public class App 
+{
+    public static void main( String[] args )
+    {
+    	
+    	System.out.println("Message from the orcs: ");
+    	
+    	LetterComposite orcMessage = new Messenger().messageFromOrcs();
+    	orcMessage.print();
+
+    	System.out.println("\n");
+    	
+    	System.out.println("Message from the elves: ");
+    	
+    	LetterComposite elfMessage = new Messenger().messageFromElves();
+    	elfMessage.print();
+    	
+    }
+}