## About The Pull Request
Fixes#73368
Golems didn't mind transfer on body swap until after the body was
finished creating, this created an issue as golems also did mind
assignment business while creating the body. So the
`mind.enslave_to_creator()` part runtime error'd and caused the create
to fail, which in turn caused the shell to not be consumed.
While sorting this out, I noticed that shells and golems hold a hard
reference to their owner. Yep, hard deletes. Changes mind `enslaved_to`
to a weakref, changes golem `owner` to a weakref, straight up removes
golem `owner` tracking on species because it was ONLY used for card
board golems when it could've just grabbed mind master
## Why It's Good For The Game
No more infinite golem shells
## Changelog
🆑 Melbert
fix: Transferring golem shells no longer make you a free man and also
results in infinite golem shells
fix: Servant golems are considerably less free
fix: Fixes some hard deletes related to mob minds being enslaved to
other mobs
/🆑
e8d209c6f4