Infer more about operator/rolling stock from location/etc

[t5r7]

Aarhus Letbane stations are just "Letbane," Odense Letbane stations are "Odense Letbane" - we can infer traction info and operator details from this. Could do similar for Metro and S-tog.

Could give option to pick type of train for InterCity/Regional

[t5r7]

Added some operator inferance in 2505f49

[t5r7]

While Metro is broken (#6), we should still set the operator and etc when picking a Metro service.

• Route should be “Line Direction,” ie: “M3 via Kongens Nytorv.”
• Operator is “Københavns Metro”
• Identity I’m not sure about - leave blank since we can’t get individual service ID?
• Vehicle Type = Metro

[t5r7]

There's not many so might as well include them all in one list

DMU

IC3 5XXX - InterCity, 3 carriages ("Contessa")
IC2 XXXX - "InterCity", 2 carriages (used by Lokaltog A/S, basically a Contessa)
IC4 56XX - InterCity, 4 carriages (the one people hate)

EMU

ER (IR4) XXXX - InterRegional, electric Contessa
ET - Øresundståg
SA XXXX - S-Tog (4th Gen S-Tog - 8 carriages)
SE XXXX - S-Tog (4th Gen S-Tog - 4 carriages)

Loco

EG 31XX - EuroSprinter
EB 32XX - Siemens Vectron