The lapis ore drop has been registered as `"mcl_dye:blue"`
because it doubled as the blue dye for lack of a proper blue dye.
This commit makes the lapis item its own `"mcl_core:lapis"` item and
updates the lapis users (but not the blue dye users.)
* Add craftitem for `"mcl_core:lapis"`.
* Update crafting recipes for lapis block.
* Update lapis ore drops.