Add some command line arguments to the init command

[frob]

It would be nice if there where some command line arguments, or really just one really. I would like to be able to tell tome what profile to install a site from through the command line. This would allow this to be scriptable.

[frob]

Probably the easiest way to do this is to reduce the $profiles array down to the cli argument, which I would assume is the machine name.

    $profiles = $this->getProfiles();
    if (!is_null($default_profile)) {
      $profile = array_reduce($a, function ($result, $element) use ($default_profile) {
        if ($element === $default_profile) {
          $result = $element;
        }
      });
    }
    else {
      $profile = $this->io()->choice('Select an installation profile', $profiles);
    }

Something like above should work.