title: How to read config files on elixir mix project
body: <p>I am creating an elixir project to search for patterns in files.
  I want to store those patterns a config files to allow for easy changes in the app.
  My first idea is storing those files as exs files in the config folder in the mix project.
  So, the questions are: </p>
  
  <ol>
  <li>Is there any easy way to store the config in the files a a keyword list?</li>
  <li>How would I load it in the app? </li>
  </ol>
  
  <p>I see there are modules like File to read the file, but is there no standard way to parse keyword lists in elixir? I was thinking something similar as the yml files in Rails.</p>