Bundle Vector Image should be linkable (like the regular image bundle)

Needs to be added to config and needs an update hook accordingly

@thomas.frobieter in https://www.drupal.org/project/drowl_paragraphs_bs → we can safe us from the update and config work, if we do it before release! Moved it over, please have a look.

OK, I've added the config. I need to fix the template when we have an instance up and running again.