fix and small balance change to the utility vendor. (#4169)

# About the pull request
this is to first fix a single mistake of duplicate item being sell :
flashlight.
also add multi-tool roller bed and mini extinguisher.

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# Explain why it's good for the game
fixing and balancing in small touch is good.
# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

Put screenshots and videos here with an empty line between the
screenshots and the `<details>` tags.

</details>


# Changelog
:cl:
add: Add roller bed, mini extinguisher and multi-tool to the utility
vendor in small quantity.
balance: divide by two the number of "ME3 hand welder" in utility
vendor.
fix: remove a duplicate item being sell the flashlight.
fix: some clothing items have a minimum of one now.
/:cl:

---------

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

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

@@ -79,10 +79,10 @@
 
 		list("WEBBINGS", -1, null, null),
 		list("Brown Webbing Vest", round(scale * 1.25), /obj/item/clothing/accessory/storage/black_vest/brown_vest, VENDOR_ITEM_REGULAR),
-		list("Black Webbing Vest", round(scale * 0.5), /obj/item/clothing/accessory/storage/black_vest, VENDOR_ITEM_REGULAR),
+		list("Black Webbing Vest", max(1,(scale * 0.5)), /obj/item/clothing/accessory/storage/black_vest, VENDOR_ITEM_REGULAR),
 		list("Webbing", round(scale * 2), /obj/item/clothing/accessory/storage/webbing, VENDOR_ITEM_REGULAR),
-		list("Drop Pouch", round(scale * 0.5), /obj/item/clothing/accessory/storage/droppouch, VENDOR_ITEM_REGULAR),
-		list("Shoulder Holster", round(scale * 0.5), /obj/item/clothing/accessory/storage/holster, VENDOR_ITEM_REGULAR),
+		list("Drop Pouch", max(1,(scale * 0.5)), /obj/item/clothing/accessory/storage/droppouch, VENDOR_ITEM_REGULAR),
+		list("Shoulder Holster", max(1,(scale * 0.5)), /obj/item/clothing/accessory/storage/holster, VENDOR_ITEM_REGULAR),
 
 		list("ARMOR", -1, null, null),
 		list("M3 Pattern Carrier Marine Armor", round(scale * 15), /obj/item/clothing/suit/storage/marine/carrier, VENDOR_ITEM_REGULAR),
@@ -107,7 +107,7 @@
 		list("RESTRICTED BACKPACKS", -1, null, null),
 		list("USCM Technician Welderpack", round(scale * 1.25), /obj/item/storage/backpack/marine/engineerpack, VENDOR_ITEM_REGULAR),
 		list("Technician Welder-Satchel", round(scale * 2), /obj/item/storage/backpack/marine/engineerpack/satchel, VENDOR_ITEM_REGULAR),
-		list("Radio Telephone Backpack", round(scale * 0.5), /obj/item/storage/backpack/marine/satchel/rto, VENDOR_ITEM_REGULAR),
+		list("Radio Telephone Backpack", max(1,(scale * 0.5)), /obj/item/storage/backpack/marine/satchel/rto, VENDOR_ITEM_REGULAR),
 
 		list("BELTS", -1, null, null),
 		list("M276 Pattern Ammo Load Rig", round(scale * 15), /obj/item/storage/belt/marine, VENDOR_ITEM_REGULAR),
@@ -155,6 +155,8 @@
 		list("M10 Helmet Rain Cover", round(scale * 10), /obj/item/prop/helmetgarb/raincover, VENDOR_ITEM_REGULAR),
 		list("Firearm Lubricant", round(scale * 15), /obj/item/prop/helmetgarb/gunoil, VENDOR_ITEM_REGULAR),
 		list("USCM Flair", round(scale * 15), /obj/item/prop/helmetgarb/flair_uscm, VENDOR_ITEM_REGULAR),
+		list("Falling Falcons Shoulder Patch", round(scale * 15), /obj/item/clothing/accessory/patch/falcon, VENDOR_ITEM_REGULAR),
+		list("USCM Shoulder Patch", round(scale * 15), /obj/item/clothing/accessory/patch, VENDOR_ITEM_REGULAR),
 		)
 
 //--------------SQUAD SPECIFIC VERSIONS--------------
@@ -272,11 +274,11 @@
 		list("Wirecutters", round(scale * 5), /obj/item/tool/wirecutters, VENDOR_ITEM_REGULAR),
 		list("Crowbar", round(scale * 5), /obj/item/tool/crowbar, VENDOR_ITEM_REGULAR),
 		list("Wrench", round(scale * 5), /obj/item/tool/wrench, VENDOR_ITEM_REGULAR),
-		list("ME3 hand welder", round(scale * 2), /obj/item/tool/weldingtool/simple, VENDOR_ITEM_REGULAR),
+		list("Multitool", round(scale * 1), /obj/item/device/multitool, VENDOR_ITEM_REGULAR),
+		list("ME3 hand welder", round(scale * 1), /obj/item/tool/weldingtool/simple, VENDOR_ITEM_REGULAR),
 
 		list("FLARE AND LIGHT", -1, null, null),
 		list("Combat Flashlight", round(scale * 5), /obj/item/device/flashlight/combat, VENDOR_ITEM_REGULAR),
-		list("Flashlight", round(scale * 5), /obj/item/device/flashlight/combat, VENDOR_ITEM_REGULAR),
 		list("Box of Flashlight", round(scale * 1), /obj/item/ammo_box/magazine/misc/flashlight, VENDOR_ITEM_REGULAR),
 		list("Box of Flares", round(scale * 1), /obj/item/ammo_box/magazine/misc/flares, VENDOR_ITEM_REGULAR),
 		list("M94 Marking Flare Pack", round(scale * 10), /obj/item/storage/box/m94, VENDOR_ITEM_REGULAR),
@@ -286,6 +288,8 @@
 		list("Toolkit", round(scale * 1), /obj/item/storage/firstaid/toolkit/empty, VENDOR_ITEM_REGULAR),
 		list("Map", round(scale * 5), /obj/item/map/current_map, VENDOR_ITEM_REGULAR),
 		list("Extinguisher", round(scale * 5), /obj/item/tool/extinguisher, VENDOR_ITEM_REGULAR),
+		list("Fire Extinguisher (Portable)", round(scale * 1), /obj/item/tool/extinguisher/mini, VENDOR_ITEM_REGULAR),
+		list("Roller Bed", round(scale * 1), /obj/item/roller, VENDOR_ITEM_REGULAR),
 		list("Machete Scabbard (Full)", round(scale * 5), /obj/item/storage/large_holster/machete/full, VENDOR_ITEM_REGULAR),
 		list("Binoculars", round(scale * 1), /obj/item/device/binoculars, VENDOR_ITEM_REGULAR),
 		list("MB-6 Folding Barricades (x3)", round(scale * 2), /obj/item/stack/folding_barricade/three, VENDOR_ITEM_REGULAR),