Hard upstream sync (#6951)

* maps - none of our changes included yet i'll get them in after i finish up the rest of the sync

* sync part 1 - underscore folders in code

* controllers folder

* datums folder

* game folder

* cmon, work

* modules - admin to awaymissions

* cargo to events

* fields to lighting

* mapping > ruins

* rest of the code folder

* rest of the folders in the root directory

* DME

* fixes compiling errors. it compiles so it works

* readds map changes

* fixes dogborg module select

* fixes typo in moduleselect_alternate_icon filepath

code/modules/atmospherics/environmental/LINDA_turf_tile.dm

@@ -238,9 +238,6 @@
 		if (!M.anchored && !M.pulledby && M.last_high_pressure_movement_air_cycle < SSair.times_fired)
 			M.experience_pressure_difference(pressure_difference, pressure_direction)
 
-/turf/closed/proc/high_pressure_movements()
-	return
-	
 /atom/movable/var/pressure_resistance = 10
 /atom/movable/var/last_high_pressure_movement_air_cycle = 0