Surgical Drop Pouch Revival (#4481)

# About the pull request

Continuation of #4311 All credit where its due.

Adds a reskinned surgical vest based off of the drop pouch sprites,
currently only obtainable as an accessory choice within the synthetic
vendor.

Adds a Green, Blue and Black version of the pouch. 

The sprites size issues were addressed. 

# Explain why it's good for the game

The surgical vest covers up shirt sprites. Some players have expressed
wanting to show the shirt sprites off more, but still be able to carry
surgical tools


# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

![Screenshot 2023-09-23 23 39
25](https://github.com/cmss13-devs/cmss13/assets/6595389/3896f943-fa92-4ec9-aed7-f75422b20090)

</details>


# Changelog
:cl: Sulaboy, Hidgamer, Steelpoint
add: Adds the surgical drop pouch item. It comes in green, blue and
black. Only available from the synthetic vendor currently.
imageadd: Adds sprites for the surgical drop pouches.
/:cl:

Co-authored-by: Steelpoint <[email protected]>

code/game/machinery/vending/vendor_types/crew/synthetic.dm

@@ -101,6 +101,9 @@ GLOBAL_LIST_INIT(cm_vending_clothing_synth, list(
 		list("Webbing", 0, /obj/item/clothing/accessory/storage/webbing, MARINE_CAN_BUY_ACCESSORY, VENDOR_ITEM_REGULAR),
 		list("Surgical Webbing Vest", 0, /obj/item/clothing/accessory/storage/surg_vest, MARINE_CAN_BUY_ACCESSORY, VENDOR_ITEM_REGULAR),
 		list("Surgical Webbing Vest (Blue)", 0, /obj/item/clothing/accessory/storage/surg_vest/blue, MARINE_CAN_BUY_ACCESSORY, VENDOR_ITEM_REGULAR),
+		list("Surgical Drop Pouch", 0, /obj/item/clothing/accessory/storage/surg_vest/drop_green, MARINE_CAN_BUY_ACCESSORY, VENDOR_ITEM_REGULAR),
+		list("Surgical Drop Pouch (Blue)", 0, /obj/item/clothing/accessory/storage/surg_vest/drop_blue, MARINE_CAN_BUY_ACCESSORY, VENDOR_ITEM_REGULAR),
+		list("Surgical Drop Pouch (Black)", 0, /obj/item/clothing/accessory/storage/surg_vest/drop_black, MARINE_CAN_BUY_ACCESSORY, VENDOR_ITEM_REGULAR),
 		list("Tool Webbing", 0, /obj/item/clothing/accessory/storage/black_vest/tool_webbing, MARINE_CAN_BUY_ACCESSORY, VENDOR_ITEM_REGULAR),
 		list("Drop Pouch", 0, /obj/item/clothing/accessory/storage/droppouch, MARINE_CAN_BUY_ACCESSORY, VENDOR_ITEM_REGULAR),
 

code/modules/clothing/under/ties.dm

@@ -598,6 +598,30 @@
 /obj/item/clothing/accessory/storage/surg_vest/blue/equipped
 	hold = /obj/item/storage/internal/accessory/surg_vest/equipped
 
+/obj/item/clothing/accessory/storage/surg_vest/drop_blue
+	name = "blue surgical drop pouch"
+	desc = "A matte blue synthcotton drop pouch purpose-made for holding surgical tools."
+	icon_state = "drop_pouch_surgical_blue"
+
+/obj/item/clothing/accessory/storage/surg_vest/drop_blue/equipped
+	hold = /obj/item/storage/internal/accessory/surg_vest/equipped
+
+/obj/item/clothing/accessory/storage/surg_vest/drop_green
+	name = "green surgical drop pouch"
+	desc = "A greenish synthcotton drop pouch purpose-made for holding surgical tools."
+	icon_state = "drop_pouch_surgical_green"
+
+/obj/item/clothing/accessory/storage/surg_vest/drop_green/equipped
+	hold = /obj/item/storage/internal/accessory/surg_vest/equipped
+
+/obj/item/clothing/accessory/storage/surg_vest/drop_black
+	name = "black surgical drop pouch"
+	desc = "A tactical black synthcotton drop pouch purpose-made for holding surgical tools."
+	icon_state = "drop_pouch_surgical_black"
+
+/obj/item/clothing/accessory/storage/surg_vest/drop_black/equipped
+	hold = /obj/item/storage/internal/accessory/surg_vest/equipped
+
 /obj/item/clothing/accessory/storage/knifeharness
 	name = "M272 pattern knife vest"
 	desc = "An older generation M272 pattern knife vest once employed by the USCM. Can hold up to 5 knives. It is made of synthcotton."