6 Trapdoors

1.21 support

1.20.6 support

• Added Laurel Trapdoor from Atmospheric and Pine Trapdoor from Environmental.

• bumped pack format to 15 (for 1.20)

• added mod support for The Aether: Redux (Crystal)

• added mod support for Deep Aether (Conberry, Cruderoot, Roseroot, Yagroot)