Mythic Metals Weapons and Armor Tiers

This adds what it says on the tin, and the tiers are set up like so:

• Iron: quadrillum, copper
• Bronze: bronze, kyber, banglum, aquarium
• Diamond: mythril, steel, osmium, runite, every teto pickaxe
• Emerald: durasteel, stormyx, palladium, carmot, prometheum
• Netherite: maces, tridents, adamantite, star platinum, orichalcum, midas gold sword
• Hallowed: legendary banglum, hallowed, tidesinger, gilded midas gold sword
• Metallurgium: celestium, metallurgium, red/white aegis swords, royal midas gold sword