Vanity: Deep Forged

Added to deep forged:

• Many colorful deep forged shield variants!
• Deep forged armor
• 5 deep forged mask variants

Added to stygian brass:

• Stygian brass shield
• Stygian gladiator armor

Added a new design, Refined Implements! It includes prettier versions of iron, gold, and diamond:

• Axes, Hoes, Shovels, Swords, and Pickaxes
• Halberds, Longswords, and Spades
• Messers, Knives, and Cleavers

NOW REQUIRES GECKOLIB FOR ARMOR RENDERING