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/clothing/head/helmet.dm

@@ -233,12 +233,6 @@
 	icon_state = "knight_red"
 	item_state = "knight_red"
 
-/obj/item/clothing/head/helmet/knight/templar
-	name = "crusader helmet"
-	desc = "Deus Vult."
-	icon_state = "knight_templar"
-	item_state = "knight_templar"
-
 /obj/item/clothing/head/helmet/skull
 	name = "skull helmet"
 	desc = "An intimidating tribal helmet, it doesn't look very comfortable."

code/modules/clothing/head/jobs.dm

@@ -55,24 +55,6 @@
 	flags_inv = HIDEHAIR
 	flags_cover = HEADCOVERSEYES
 
-/obj/item/clothing/head/cage
-	name = "cage"
-	desc = "A cage that restrains the will of the self, allowing one to see the profane world for what it is."
-	alternate_worn_icon = 'icons/mob/large-worn-icons/64x64/head.dmi'
-	icon_state = "cage"
-	item_state = "cage"
-	worn_x_dimension = 64
-	worn_y_dimension = 64
-	dynamic_hair_suffix = ""
-
-
-/obj/item/clothing/head/witchunter_hat
-	name = "witchunter hat"
-	desc = "This hat saw much use back in the day."
-	icon_state = "witchhunterhat"
-	item_state = "witchhunterhat"
-	flags_cover = HEADCOVERSEYES
-
 //Detective
 /obj/item/clothing/head/fedora/det_hat
 	name = "detective's fedora"