title: Ignoring files in project folder for Doxygen
body: <p><strong>How can you ignore files by Doxygen similarly as by Git's <code>.git/info/exclude</code>?</strong></p>
  
  <p>Doxygen generates docs for me based on 3rd party codes such Email -component and of my Git -repo, which I do not want.
  I need to keep the files where they are.</p>