0.12.3

Functional changes:

• Add generic item use skills (spell_engine:use_item, spell_engine:use_offhand_item)
• Add sneak to bypass Spell Hotbar (disabled by default, client configurable)
• Disable spell casting in Spectator mode
• Fix random crashes on PersistentProjectileEntity
• Fix Spell Binding Table arrow color states

API Changes:

• Add armor set modifier to allow/disable spell power enchantments