More Nether Dungeons [Achievements Enabled]

Updated 1.0.1:

• 10 new structures have been added:
• 3 Nether Castles
• 1 Nether Small Castle
• 1 Nether Tower
• 2 Piglin Castles
• 1 Piglin Small Castle
• 2 Piglin Towers
• The spawn rate of all structures has been significantly reduced!
• The loot from chests in structures has been balanced according to the difficulty of the structure. Additionally, Ancient Debris and Netherite Scraps can now be found in certain structures!