Check requirement conditions directly in Brawl

[tinybike]

e.g. data file requirement conditions will be something like

data "RequirementConditions" "CanUseWeaponActions() and IsProficientWithEquippedWeapon()"

but these functions are KHN functions which we don't have access to in SE at all. In SE you can do e.g.

Ext.Stats.Get("Rush_Charger_Attack").RequirementConditions

which is a string "CanUseWeaponActions() and IsProficientWithEquippedWeapon()". For any given req it's possible to cobble together some way of checking it in Osi or SE. But instead of doing it piecemeal it'd be really nice to just gather up all the relevant khn functions and convert them to an SE library. I think this should be possible? Khn isn't quite Lua but it's pretty freakin close.

[tinybike]

Probably not exhaustive but norb's search engine is a good starting point for khn scripts, e.g. https://bg3.norbyte.dev/search?q=type%3Akhn

[tinybike]

Some manual checks added in a122718 but def not exhaustive