Readds skull facemask and facepaint (#5042)

# About the pull request
It readds two items that were removed in the past for no valid reason
(in my opinion), since it was a targeted PR against a specific player I
do not think it should've been removed.

# Explain why it's good for the game

It looks nice and fits the atmosphere, adding it will help players
customize their characters without being too loud.
The removal reason of "You'd get laughed at for wearing it IRL" is
invalid, a lot of military and law enforcement people wear skull masks,
punisher emblems and etcetra - this is especially evident in America
(We're UA)

https://discord.com/channels/150315577943130112/746325423289401395/1168350579307860078

https://discord.com/channels/150315577943130112/827156857566265375/1145494273568022588
https://files.catbox.moe/4o3ag1.png

https://discord.com/channels/150315577943130112/604397850675380234/1094357565317586964
-- the person who made it admitting it was targeted.


# Testing Photographs and Procedure
I don't think it needs testing
</details>


# Changelog
:cl: stalkerino
add: readds skull facepaint and skull balaclava (blue and black)
/:cl:

code/modules/client/preferences_gear.dm

@@ -161,6 +161,18 @@ GLOBAL_LIST_EMPTY(gear_datums_by_name)
 	display_name = "USCM balaclava, tan"
 	path = /obj/item/clothing/mask/rebreather/scarf/tan
 
+/datum/gear/skull_balaclava_blue
+	display_name = "Blue Skull Balaclava"
+	path = /obj/item/clothing/mask/rebreather/skull
+	cost = 4 //same as skull facepaint
+	slot = WEAR_FACE
+
+/datum/gear/skull_balaclava_black
+	display_name = "Black Skull Balaclava"
+	path = /obj/item/clothing/mask/rebreather/skull/black
+	cost = 4
+	slot = WEAR_FACE
+
 /datum/gear/headwear
 	category = "Headwear"
 	cost = 3
@@ -876,6 +888,11 @@ GLOBAL_LIST_EMPTY(gear_datums_by_name)
 	display_name = "Facepaint, black"
 	path = /obj/item/facepaint/black
 
+/datum/gear/skullfacepaint
+	display_name = "Skull Facepaint"
+	path = /obj/item/facepaint/skull
+	cost = 3 
+
 /datum/gear/misc/facepaint_body
 	display_name = "Fullbody paint"
 	path = /obj/item/facepaint/sniper