More Lapis Lazuli

Adds some new decorative blocks made with lapis lazuli and an extremely fast toolset that can instant mine deepslate with haste 2 and efficiency 5, at a low durability for balancing.

As of version 1.2, the mod also adds a few structures made from lapis related blocks; two tree variants and a hut.

As of version 1.3, the frequency of the mod's structures has been reduced and limited to snowy biomes.