title: swift - MacOs application - add to finder contextual menu?
body: <p>Before all, I'm very new in swift cocoa application.</p>
  
  <p>I'm developing an MacOS application for my company, the goal of this is to open a file ("right-click -> open with my app") to process it.</p>
  
  <p>But after couples of search, I'm not enable to find a way to do it.
  (I probably didn't search the good terms, but like I said I'm very new to this)</p>
  
  <p>(I've done a similar things to windows, using the registers)</p>
  
  <p>Somebody has an idea? link, documentation ?</p>
  
  <p>Thanks !</p>