[OutputBuilder] Modify functionality for adding slots to combination groups to accommodate the fact that in addition to a list of parts, slots now also contain a list of cross references.
[OutputBuilder] Modify functionality for adding slots to combination
groups to accommodate the fact that in addition to a list of parts,
slots now also contain a list of cross references.

itsjeyd/ODE,itsjeyd/ODE,itsjeyd/ODE,itsjeyd/ODE