Slayer requirements are not shown for many crafting recipes

[gerzytet]

I noticed that for many slayer items, the crafting recipe does not show its slayer requirement. For some of these items, such as REVENANT_SWORD, the slayer_req field is set, but not crafttext. For others, like REVENANT_LEGGINGS, crafttext is set but not slayer_req. For others, like WARDEN_HEMET, both are set.

slayer_req present but crafttext empty or missing appears to be the most common case. It includes the droplet wisp items, tarantula armor, and the voidling minion, to name a few.

I'm willing to go through and standardize it, but which field should be the canonical source of slayer requirement info? I think a good solution would be slayer_req, in addition to a change to the mod to autogenerate the craft text if slayer_req exists, is valid, and no crafttext is specified.