Station Name Set in Config

Similar to how we removed randomized Centcom names for clarity, I'd like to remove randomized station names so there's no confusion as to what "North Death-Trap Delta" is.

This introduces a new configuration option that allows server hosts to set a consistent station name, separate from server name. If this option is commented out in the config, the game will randomize the name instead.

Cargo supply manifests will also be using station_name() instead of world.name, to maintain consistency.