title: Tab groups for VS Code
body: <p>Is it possible to have tab groups in VSCode somehow? Maybe there is an extension or a native setting for this?</p>
  <p>E.g. I'm working on a project, for which I would like to have three groups:</p>
  <ul>
  <li>The files I'm actively working on</li>
  <li>Test files, for reference</li>
  <li>Files for a specific feature, for reference</li>
  </ul>
  <p>I do not care too much what a UI for such a VSCode feature would look like. I just need the grouping for quick and easy tabs access.</p>
  <p>One of the options for the UI is to have three meta tabs which would represent the groups and whenever I click the meta tab I would like to be presented with the actual respective file tabs.</p>