A little more self service in the borg chargers

[Marquesas]

Look, I can see where Paineframe is coming from. Do not add the ability for borgs to unlock themselves - if anything needs to be done to the borg in the field, that's what the roboticist should exist for. But don't force limbless borgs to float around like a sad useless torso when no roboticist is available but they can crawl to the docking stations.