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/power/gravitygenerator.dm

@@ -39,9 +39,9 @@ GLOBAL_LIST_EMPTY(gravity_generators) // We will keep track of this by adding ne
 	if(prob(20))
 		set_broken()
 
-/obj/machinery/gravity_generator/tesla_act(power, explosive)
+/obj/machinery/gravity_generator/tesla_act(power, tesla_flags)
 	..()
-	if(explosive)
+	if(tesla_flags & TESLA_MACHINE_EXPLOSIVE)
 		qdel(src)//like the singulo, tesla deletes it. stops it from exploding over and over
 
 /obj/machinery/gravity_generator/update_icon()