Adds the Chinese AR Repair Recipe (#330)

Adds the Chinese Assault Rifle a.k.a the Norinco Type 93's repair recipe into the game, requiring guns and bullets book 4 and a little more expensive than the AC repair recipe.

code/datums/components/crafting/recipes/recipes_weapon_and_ammo.dm

@@ -1523,7 +1523,22 @@
 	category = CAT_WEAPONRY
 	subcategory = CAT_WEAPON
 	always_available = FALSE
-
+//Chinese Assault Rifle Repair
+/datum/crafting_recipe/worn_type93_repair
+	name = "Repair a Worn Type 93"
+	result = /obj/item/gun/ballistic/automatic/type93
+	reqs = list(/obj/item/stack/sheet/metal = 3,
+				/obj/item/stack/crafting/goodparts = 15,
+				/obj/item/gun/ballistic/automatic/type93/worn = 1,
+				/obj/item/stack/sheet/prewar = 20,
+				/obj/item/attachments/auto_sear = 1,
+				/obj/item/stack/sheet/mineral/wood = 5,
+				)
+	tools = list(TOOL_AWORKBENCH, TOOL_SCREWDRIVER)
+	time = 120
+	category = CAT_WEAPONRY
+	subcategory = CAT_WEAPON
+	always_available = FALSE
 
 //////////////////////////////////
 ///GUN ATTACHMENT/PARTS CRAFTING//

code/game/objects/items/granters.dm

@@ -594,7 +594,7 @@
 	desc = "An extremely rare issue of Guns and Bullets, showing some design flaws of weapons and how to rectify them. It's barely holding up, and looks like only one person can study the knowledge from it."
 	icon_state = "gab4"
 	remarks = list("Always keep your gun well lubricated...", "Keep your barrel free of grime...", "Perfect fitment is the key to a good firearm...", "Maintain a proper trigger pull length...", "Keep your sights zeroed to proper range...")
-	crafting_recipe_types = list(/datum/crafting_recipe/flux, /datum/crafting_recipe/lenses, /datum/crafting_recipe/conductors, /datum/crafting_recipe/receiver, /datum/crafting_recipe/assembly, /datum/crafting_recipe/alloys, /datum/crafting_recipe/assault_carbine_repair)
+	crafting_recipe_types = list(/datum/crafting_recipe/flux, /datum/crafting_recipe/lenses, /datum/crafting_recipe/conductors, /datum/crafting_recipe/receiver, /datum/crafting_recipe/assembly, /datum/crafting_recipe/alloys, /datum/crafting_recipe/assault_carbine_repair, /datum/crafting_recipe/worn_type93_repair)
 	autolathe_level = "advanced"
 
 /obj/item/book/granter/crafting_recipe/scav_one