convertEventType(currentEventType) {
    let newEventType = currentEventType;
    //Change the naming of the event type
    switch (newEventType) {
    case 'unlink':
    case 'unlinkDir':
      newEventType = 'removed';
      break;
    case 'addDir':
    case 'add':
      newEventType = 'added';
      break;
    case 'change':
      newEventType = 'changed';
      break;
    case 'rename':
      newEventType = 'renamed';
      break;
    default:
      newEventType = `unknown (${currentEventType})`;
    }
    return newEventType;
  }
Convert the event type to a more usefull one.
@param {*} currentEventType The current event type (from chokidar)