Adds incendiary shotgun shells available via hacked autolathes in a new subclass of incendiary bullets and gave chemical dart shells their own sprites.

Conflicts:
	code/game/machinery/autolathe.dm
	code/game/mecha/equipment/weapons/weapons.dm
	code/modules/projectiles/ammunition/bullets.dm
	code/modules/projectiles/projectile/bullets.dm
	icons/obj/ammo.dmi

code/modules/projectiles/projectile/bullets.dm

@@ -98,8 +98,6 @@
 
 
 /obj/item/projectile/bullet/incendiary
-	name = "incendiary bullet"
-	damage = 20
 
 /obj/item/projectile/bullet/incendiary/on_hit(var/atom/target, var/blocked = 0)
 	if(istype(target, /mob/living/carbon))
@@ -107,6 +105,13 @@
 		M.adjust_fire_stacks(1)
 		M.IgniteMob()
 
+/obj/item/projectile/bullet/incendiary/shell
+	damage = 20
+
+/obj/item/projectile/bullet/incendiary/mech
+	damage = 5
+
+
 /*
 /obj/item/projectile/bullet/dart
 	name = "dart"