title: Import external file content into handlebar
body: <p>I hope someone can give me a hint.
  I would like to import content from one file into my handlebar file. Is it possible? 
  In my case, it is an css/scss file (e.g. reset.css) which stylings I want to import into my handlebar file (styleReset.hbs).</p>
  
  <p>The "styleReset.hbs" should looks kind of like this:</p>
  
  <pre><code>&lt;style type="text/css"&gt;
      &lt;!-- import of reset.css content --&gt;
  &lt;/style&gt;
  </code></pre>
  
  <p>P.S. I don't want use the -tag</p>