Adds Wheelchairs with basic driving functionality
Makes crashing into things possible with extinguisher or harm intent
Fixes. Wheelchair is supposed to help the occupant and not the driver, damn it.
Wheelchairs spawn on footless characters
Replaces stool in Examination with wheelchair
Updated changelog
Movement with wheelchair not possible in space
Fixes compile error
Merge pull request #5162 from mwerezak/wheelchair

Wheelchairs