Features
New Structure: The lost library generates underground. It has a lot of bookshelves, maybe some are salvageable? Also has anvils, a lodestone, a smithing table, and a potion station.
Compatibility
Spawns using the #is_overworld tag, so should be compatible with anything. Uses stronghold library loot, so changing that will change the loot that appears in this structure.
REQUIRES COMMAND BLOCKS
