MAGETWO-32234: Subcategories in menu are shown instantly when user moves mouse quickly

- Added delay config and fix

Author: Ihor Melnychenko

lib/web/mage/menu.js

@@ -355,6 +355,7 @@ define([
                 return (typeof handler === "string" ? instance[handler] : handler)
                     .apply(instance, arguments);
             };
+            
             return setTimeout(handlerProxy, delay || 0);
         }
     });