Corrects #5157.

Renames the misc. and xeno-research door to simply "Xenobiology Research".
Adds some of the lost equipment back to misc. research.
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 remote-tracking branch 'upstream/dev' into XenoBio
Merge pull request #5159 from PsiOmegaDelta/XenoBio

Corrects #5157
Merge pull request #5162 from mwerezak/wheelchair

Wheelchairs