CNY 16x Java Port v1.0.3 (12/12/2025) [1.20-1.21]

Sorry for the very delayed update, things happened and I didn't have time to update this pack, until now!

• Ported the pack to 1.21.9/.10 (The Copper Age) and 1.21.11 (Mounts of Mayhem)
• Updated the pack.mcmeta file to work with the new supported versions format introduced in 1.21.9
• Added textures for the copper variant of the armor and tool set
• Added textures for the spears to match the pallete of swords and axes
• Added texture for the Nautilus' GUI
• Added textures for the Nautilus Armor's and Spear's slot icons
• Fixed a single miscolored pixel in the empty_slot_ingot.png / ingot.png file