Adds the 9mm Speed Loader (#5665)

## About The Pull Request

I've added a speed loader usable by the new Protector revolver, sprited
by both me and Niim. It holds five 9mm bullets, craftable from both the
security fabricator and the autolathe, just like the .38 speedloader.
Obviously, it can only hold 9mm bullets, you can't use it to pick up
other ammo types.

## Why It's Good For The Game

The new revolver is EXTREMELY janky to reload otherwise, only allowing
one single bullet at a time from Murphy magazines.

## Proof Of Testing

https://files.catbox.moe/zy8hcw.mp4

I've since fixed some spelling mistakes visible in the preview (was
speedloader, changed to speed loader)

## Changelog

🆑 IbexGoetia, Niim
add: Added a speed loader for the Protector revolver. It holds five 9mm
bullets, and can be crafted from the security fabricator and the
autolathe.
/🆑

modular_skyrat/modules/sec_haul/code/technode/all_nodes.dm

@@ -30,6 +30,7 @@
 	design_ids += "ammoworkbench_disk_lethal"
 	design_ids += "ammo_workbench"
 	design_ids += "m9mm_sec"
+	design_ids += "m9mm_sec_speedloader"
 
 /datum/techweb_node/sec_equip/New()
 	. = ..()

modular_zubbers/code/modules/projectiles/boxes_magazines/external/pistol.dm

@@ -65,3 +65,26 @@
 		for(var/i = 0; i < bullets_to_remove; i++)
 			qdel(get_round())
 		update_icon()
+
+/obj/item/ammo_box/speedloader/security
+	name = "speed loader (9mm Murphy)"
+	desc = "Designed to quickly reload five-chambered 9mm revolvers."
+	icon = 'modular_zubbers/icons/obj/weapons/guns/ammo.dmi'
+	icon_state = "9mm"
+	base_icon_state = "9mm"
+	ammo_type = /obj/item/ammo_casing/security
+	caliber = CALIBER_9MM_SEC
+	max_ammo = 5
+	ammo_band_icon = null
+	ammo_band_color = null
+
+/obj/item/ammo_box/speedloader/security/update_icon_state()
+	. = ..()
+	icon_state = "[base_icon_state]-base"
+
+/obj/item/ammo_box/speedloader/security/update_overlays()
+	. = ..()
+	if(!LAZYLEN(stored_ammo))
+		return
+	for(var/inserted_ammo in 1 to stored_ammo.len)
+		. += "9mm-revolver-[inserted_ammo]"

modular_zubbers/code/modules/research/designs/weapon_designs.dm

@@ -270,3 +270,19 @@
 		RND_CATEGORY_WEAPONS + RND_SUBCATEGORY_WEAPONS_AMMO
 	)
 	departmental_flags = DEPARTMENT_BITFLAG_SECURITY
+
+/datum/design/m9mm_sec_speedloader
+	name = "Speed Loader (9x25mm Murphy) (Lethal)"
+	desc = "Designed to quickly reload five-chambered 9mm revolvers."
+	id = "m9mm_sec_speedloader"
+	build_type = PROTOLATHE | AWAY_LATHE | AUTOLATHE
+	materials = list(
+		/datum/material/iron = HALF_SHEET_MATERIAL_AMOUNT * 15,
+		/datum/material/plastic = HALF_SHEET_MATERIAL_AMOUNT * 2,
+	)
+	build_path = /obj/item/ammo_box/speedloader/security
+	category = list(
+		RND_CATEGORY_INITIAL,
+		RND_CATEGORY_WEAPONS + RND_SUBCATEGORY_WEAPONS_AMMO,
+	)
+	departmental_flags = DEPARTMENT_BITFLAG_SECURITY