* Digitigrade Paralysis BugFix (#59697)
* Fixing Digitigrade Legs, Adding Sanity Checks
- A limb's attach_limb proc now uses the set_owner() proc instead of setting the owner manually, fixing problems where limbs that were meant to be paralyzed were not
- Added a sanity check to set_usable_legs to ensure the value isn't set lower than 0
* Adds A Stack Trace to Set_Usable_Legs
- set_usable_legs now calls stack_trace() whenever it is provided with a negative value
* Digitigrade Paralysis BugFix
Co-authored-by: Beatrice <83368538+SpaceDragon00@users.noreply.github.com>