Adds a version of the CO armor without pauldrons (#7143)

# About the pull request

This is based on the old sprite, and is a stat-identical version of the
normal CO armor, minus the pauldrons.

Nessie is behind this, please refer criticism that way. (Unless it's the
code, that's on me)

# Explain why it's good for the game

More choices for drip baby!


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


![image](https://github.com/user-attachments/assets/dd9a32fe-c8fa-40f3-98a2-d98438e74b21)

Can only pick 1:

![image](https://github.com/user-attachments/assets/5640c65e-1b14-4809-8f4a-09ce823c25cc)

Worn:

![image](https://github.com/user-attachments/assets/9c4557b8-934a-4a28-bba8-877a4ffe7b07)


</details>


# Changelog
:cl:
add: COs have a new variant of their armor to choose from
/:cl:

---------

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

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

@@ -82,8 +82,11 @@ GLOBAL_LIST_INIT(cm_vending_clothing_commanding_officer, list(
 		list("Commanding Officer Backpack", 0, /obj/item/storage/backpack/mcommander, MARINE_CAN_BUY_BACKPACK, VENDOR_ITEM_MANDATORY),
 		list("Secure Satchel", 0, /obj/item/storage/backpack/satchel/lockable, MARINE_CAN_BUY_BACKPACK, VENDOR_ITEM_MANDATORY),
 
-		list("COMBAT EQUIPMENT (TAKE ALL)", 0, null, null, null),
+		list("ARMOR (CHOOSE 1)", 0, null, null, null),
 		list("Commanding Officer's M3 Armor", 0, /obj/item/clothing/suit/storage/marine/MP/CO, MARINE_CAN_BUY_ARMOR, VENDOR_ITEM_MANDATORY),
+		list("Commanding Officer's M3 Armor (No Pauldrons)", 0, /obj/item/clothing/suit/storage/marine/MP/CO/no_pauldrons, MARINE_CAN_BUY_ARMOR, VENDOR_ITEM_MANDATORY),
+
+		list("COMBAT EQUIPMENT (TAKE ALL)", 0, null, null, null),
 		list("Commanding Officer's M10 Helmet", 0, /obj/item/clothing/head/helmet/marine/CO, MARINE_CAN_BUY_HELMET, VENDOR_ITEM_MANDATORY),
 		list("Commanding Officer's Gloves", 0, /obj/item/clothing/gloves/marine/techofficer/commander, MARINE_CAN_BUY_GLOVES, VENDOR_ITEM_MANDATORY),
 		list("Marine Combat Boots", 0, /obj/item/clothing/shoes/marine/knife, MARINE_CAN_BUY_SHOES, VENDOR_ITEM_MANDATORY),

code/modules/clothing/suits/marine_armor/_marine_armor.dm

@@ -372,6 +372,11 @@
 	valid_accessory_slots = list(ACCESSORY_SLOT_MEDAL, ACCESSORY_SLOT_RANK, ACCESSORY_SLOT_DECOR, ACCESSORY_SLOT_PONCHO)
 	black_market_value = 35
 
+/obj/item/clothing/suit/storage/marine/MP/CO/no_pauldrons
+	icon_state = "co_light_officer"
+	item_state = "co_light_officer"
+	item_state_slots = list(WEAR_JACKET = "co_light_officer")
+
 
 /obj/item/clothing/suit/storage/marine/MP/CO/jacket
 	name = "\improper M3 pattern commanding officer armored coat"