title: Is it possible to write a plugin to open a directory and generate some files in it?
body: <p>I would love to write a plugin like yo plugin but with some UI. But yo could not work before you open a directory in vscode. What I need is to select a directory in my UI and automatically generate codes.</p>
  
  <p>Can any one tell me which API to use to do such things and I will dig into it.</p>