added base classes to Server

app/Game/Core/GameObject.js

@@ -0,0 +1,20 @@
+define([
+],
+ 
+function() {
+ 
+    function GameObject() {
+    	this.body = null;
+    }
+ 
+    GameObject.prototype.render = function() {
+        return null;
+    }
+
+    GameObject.prototype.getBody = function() {
+    	return this.body;
+    };
+ 
+    return GameObject;
+ 
+});