Allow individual armor materials to be disabled via armor.conf

3d_armor/armor.conf.example

@@ -1,5 +1,17 @@
 -- Armor Configuration (defaults)
 
+-- You can remove any unwanted armor materials from this table.
+-- Note that existing armor that is removed will show up as an unknown item.
+ARMOR_MATERIALS = {
+	wood = "default:wood",
+	cactus = "default:cactus",
+	steel = "default:steel_ingot",
+	bronze = "default:bronze_ingot",
+	diamond = "default:diamond",
+	gold = "default:gold_ingot",
+	mithril = "moreores:mithril_ingot",
+}
+
 -- Increase this if you get initialization glitches when a player first joins.
 ARMOR_INIT_DELAY = 1