title: PhpStorm Twig support for a non-symfony project
body: <p>I have inherited a WordPress project that is heavily decoupled from WordPress, and uses twig. I am using PhpStorm and none of the Twig features seem to be working e.g. jumping to variable declarations, autocomplete &amp; namespaces etc.</p>
  
  <p>In a traditional Symfony project, I can see that the Symfony and Twig configuration options and namespaces are all populated and configured automatically, but that is not the case with this project.</p>
  
  <p>Is there some minimum manual configuration that needs to be done in order to get Twig support working in a non-symfony project?</p>