Integration for Iron's Spellbooks basically

1. Spellbooks (instanceof Spellbook)
   Staves (instanceof CastingItem)
   You can use item tags but this would work automatically with any new changes and addons

2. Something like this for staffs without needing to make a tag for it
   
   The "Weapon" type currently hard checks for isSword | isAxe | isTrident so that wont work either.
   They are not even included anywhere in the "In Equipment" type, so unless you make a tag they won't work with these sorts of bonuses at all

Github link:
https://github.com/Daripher/Passive-Skill-Tree/blob/1.20.1/src/main/java/daripher/skilltree/skill/bonus/condition/item/EquipmentCondition.java