Doggy-Talents magic

Adds magic-related talents for your dogs, bridging DoggyTalents Next and Iron's Spells 'n' Scrolls!

Features:

• 📜 Spell Mastery (spell_casting): Equip a Spell Book to your dog (Right-click with a book). Dogs will cast spells during combat and even kite enemies at higher levels!

• 💧 Mana Fountain (mana_aura): Emits an aura that constantly regenerates mana for the owner and nearby allies.

• 💖 Charming Beggar (wizard_charmer): Dogs charm nearby Merchant Wizards to get trade discounts and occasional gifts (including rare inks at high levels!).