QOL for Corpsman and ComTech vendors (#7409)

# About the pull request

Adds welding visor to the engi vendor for those who dont use the engi
helmet.
(every marine and crew vendor except the squad engineer has welding
visor in their vendors.)

Places the perixadon revival mix near the tricordazine revival mix so
you dont have to scroll for it and it looks more organized.

# Explain why it's good for the game

Engineer vendor not having a welding visor makes no sense when every
other vendor has it.
Having to use the welding googles just because you are not wearing a
technician helmet is bad.

# Testing Photographs and Procedure

<details>
<summary>Screenshots & Videos</summary>


</details>


# Changelog
:cl:
qol: Squad engineer vendors now have welding visor.
qol: Organized the corpsman vendor so that the perixadon revival mix is
near the tricordrazine revival mix.
/:cl:

code/game/machinery/vending/vendor_types/squad_prep/squad_engineer.dm

@@ -86,6 +86,7 @@ GLOBAL_LIST_INIT(cm_vending_gear_engi, list(
 
 		list("HELMET OPTICS", 0, null, null, null),
 		list("Medical Helmet Optic", 12, /obj/item/device/helmet_visor/medical, null, VENDOR_ITEM_REGULAR),
+		list("Welding Visor", 5, /obj/item/device/helmet_visor/welding_visor, null, VENDOR_ITEM_REGULAR),
 
 		list("PAMPHLETS", 0, null, null, null),
 		list("JTAC Pamphlet", 15, /obj/item/pamphlet/skill/jtac, null, VENDOR_ITEM_REGULAR),

code/game/machinery/vending/vendor_types/squad_prep/squad_medic.dm

@@ -146,13 +146,13 @@ GLOBAL_LIST_INIT(cm_vending_clothing_medic, list(
 
 		list("POUCHES (CHOOSE 2)", 0, null, null, null),
 		list("Pressurized Reagent Canister Pouch (Revival Mix - Tricordrazine)", 0, /obj/item/storage/pouch/pressurized_reagent_canister/revival_tricord, MARINE_CAN_BUY_POUCH, VENDOR_ITEM_RECOMMENDED),
+		list("Pressurized Reagent Canister Pouch (Revival Mix - Peridaxon)", 0, /obj/item/storage/pouch/pressurized_reagent_canister/revival_peri, MARINE_CAN_BUY_POUCH, VENDOR_ITEM_REGULAR),
 		list("Medical Kit Pouch", 0, /obj/item/storage/pouch/medkit, MARINE_CAN_BUY_POUCH, VENDOR_ITEM_RECOMMENDED),
 		list("Autoinjector Pouch", 0, /obj/item/storage/pouch/autoinjector, MARINE_CAN_BUY_POUCH, VENDOR_ITEM_REGULAR),
 		list("First Responder Pouch", 0, /obj/item/storage/pouch/first_responder, MARINE_CAN_BUY_POUCH, VENDOR_ITEM_REGULAR),
 		list("Pressurized Reagent Canister Pouch (Bicaridine)", 0, /obj/item/storage/pouch/pressurized_reagent_canister/bicaridine, MARINE_CAN_BUY_POUCH, VENDOR_ITEM_REGULAR),
 		list("Pressurized Reagent Canister Pouch (Kelotane)", 0, /obj/item/storage/pouch/pressurized_reagent_canister/kelotane, MARINE_CAN_BUY_POUCH, VENDOR_ITEM_REGULAR),
 		list("Pressurized Reagent Canister Pouch (Tricordrazine)", 0, /obj/item/storage/pouch/pressurized_reagent_canister/tricordrazine, MARINE_CAN_BUY_POUCH, VENDOR_ITEM_REGULAR),
-		list("Pressurized Reagent Canister Pouch (Revival Mix - Peridaxon)", 0, /obj/item/storage/pouch/pressurized_reagent_canister/revival_peri, MARINE_CAN_BUY_POUCH, VENDOR_ITEM_REGULAR),
 		list("Pressurized Reagent Canister Pouch (EMPTY)", 0, /obj/item/storage/pouch/pressurized_reagent_canister, MARINE_CAN_BUY_POUCH, VENDOR_ITEM_REGULAR),
 		list("Vial Pouch (Full)", 0, /obj/item/storage/pouch/vials/full, MARINE_CAN_BUY_POUCH, VENDOR_ITEM_REGULAR),
 		list("Medical Pouch", 0, /obj/item/storage/pouch/medical, MARINE_CAN_BUY_POUCH, VENDOR_ITEM_REGULAR),