title: how to do nested routing
body: <p>Can someone recommend how to properly (nestjs way) implement nested router? For example,</p>
  <blockquote>
  <p><code>/users/12/characters/765/tools</code></p>
  </blockquote>
  <p>I'd like to have users controller and characters controller that is dependent on users (sub router) in separate files
  ( if this is not recommended way, could you suggest alternatives? ) thanks in advance!</p>