title: extendscript: get folders of Project
body: <p>I want to read all subfolders of my current Project. Because my Project is using images from the Footage-Folder i need all the sub-Folders of it.</p>
  
  <p>For now i only have the current Path of my project:</p>
  
  <pre><code> var projectPath=app.project.file.path;
  </code></pre>