Links many map-specific details such as the station name, z-level information, and allowed jobs from global vars to map datum vars, which should help us maintain multiple maps at once in the future, which will be needed for the future Southern Cross.
Note that a config change will be needed to change GENERATE_ASTEROID to GENERATE_MAP, otherwise no changes should be required to continue normal map usage.
To change to a different map, it's suggested to tick the file that ticks all the other needed files, which for the Northern Star is called northern_star.dm.
* The /datum/category_item/player_setup_item datums did a good job of organizing the code for loading/saving/editing preferences data, but all of the code that applies preferences to newly created player mobs was still in a single function.
* This change adds a new proc to player_setup_item datums: copy_to_mob() which is called from the traditional copy_to() proc, allowing each preferences datum to apply its own character data to the mob.
* This allowes new preferences to easily compartmentalize their new code.
* I also moved all the code for existing preferences from copy_to() into the copy_to_mob() on their respective preferences datums.
Begins breaking down the large character setup in more manageable modules, allowing for easier additions, edits, and removals.
(cherry picked from commit e116721977)
Conflicts:
code/modules/client/preferences.dm
code/modules/client/preferences_savefile.dm
polaris.dme
