Player count and role count adjustments to Amber, Bagel, Hummingbird, Train

[DinnerCalzone]

Nudges up Amber's max player count to 40 now that the issue causing it to roll so often has been fixed.

Lowered Bagel's scientist count to 4 and research assistant to 3 (scientists don't have enough to do to necessitate so many people in their department...).

Reduce Train's max player count to 70, increase research assistant, medical intern, and atmos tech slots by 1, increase round-start lawyer slots by 1, reduce late-join service workers slot by 1, add some map adjustments to support extra atmos tech.

Increase Hummingbird's security office slots to 6, security cadet slots to 4, lawyer slots to 2 (it was always meant to be 2), small mapping changes to add more security officer lockers. The responsibilities of sec scale up by player count in a way that quite doesn't for other departments (other than maybe medical), so I thought it might be good to increase the possible amount of security officers a bit.

Changelog

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• tweak: Amber, Bagel, Train, and Hummingbird have received some adjustments to their max player counts and job availability.

[mqole]

looking away from the number of lines changed.