Passenger Assistance Facility Support Values do not align with the XSD

[skinkie]

This relates to #53

[ue71603]

@skinkie as this relates to EPIAP. Still work needed?

[skinkie]

This relates to it, but also Part1. So it has to align. (and I am still slacking.... because I answer tickets)

[ue71603]

Enum or documentation needs to be changed.

[ue71603]

really code change needed or only specification document?

[ue71603]

only update in specification needed.
Staffing instead of StaffingFacility.
EmergencyServiceList added.