title: Change Symfony 3 controllers folder
body: <p>I'm working on a project with Symfony 3 and I want to make my AppBundle folder be like this:</p>
  
  <ul>
  <li>AppBundle/
  
  <ul>
  <li>Domain/</li>
  <li>Application/</li>
  <li>Infrasctructure/</li>
  <li>UserInterface/
  
  <ul>
  <li>Controller/
  
  <ul>
  <li>DefaultController/</li>
  </ul></li>
  </ul></li>
  </ul></li>
  </ul>
  
  <p>I want to put the "Controller" folder inside the UserInterface layer. The problem is that the Symfony magic method to load the controllers is searching them on "AppBundle/Controller" path.</p>
  
  <p>Is there any option to specify the controller path on my routing.yml file like this?</p>
  
  <pre><code>app.home_page:
    path: /test
    defaults: {_controller: AppBundle:UserInterface\Default:indexAction}
  </code></pre>