Half-Refactors Jobs (#6762)

* Somewhat cleans up a piece of job code, makes new ID computers not be awful.

* Changes ROLE_ defines to DEPARTMENT_ to be clearer. Backports the new ID computer's assignment section of its UI to the old ID computer.

* Swaps back to southern cross map.

* Removes a block of commented code.

code/modules/client/preference_setup/occupation/occupation.dm

@@ -97,7 +97,7 @@
 		if((pref.job_civilian_low & ASSISTANT) && job.type != /datum/job/assistant)
 			. += "<font color=grey>[rank]</font></td><td></td></tr>"
 			continue
-		if((rank in command_positions) || (rank == "AI"))//Bold head jobs
+		if((rank in SSjob.get_job_titles_in_department(DEPARTMENT_COMMAND) ) || (rank == "AI"))//Bold head jobs
 			. += "<b>[rank]</b>"
 		else
 			. += "[rank]"