updated end year of the green livery

Updated weight and cost of the new passenger car

Replaced 1st class + restaurant car by 1st + 2nd class car. The capacity is now the same as the original K1n.
The K1s, the train that DB actually ended up ordering is now a different mod. (with correct speed, capacity and power system)

Added acceleration and braking values
Added amount of doors
Added livery names
Updated introduction year

Updated composition to be closer to real life.

Added new livery: ICE Green.
Updated naming.

Updated which vehicles are powered.

Added 1st class.

Balanced costs.
Changed name to group together with DB trains.

Added optional bordrestaurant and pantograph cars.
(I added the seats in the restaurant as actual capacity in the train, I will remove this when the restaurant counts as a comfort bonus)