Programmer Art DX

Added:

• New bat model adaptation (for version 1.20.3 "and up")
• New vex model adaptation
• Nether stem tops
• Mangrove log tops
• Cherry log
• Nether, mangrove, cherry planks
• Turtle egg block
• Shroomlight
• Reverted spawner model

Experimental additions (1.21):

• Copper door items
• Trial spawner
• Trial key
• Breeze