Some API or item breaking changes, some reserved for 1.17:

• Convert Spellbook, whelp, turrets, etc. to Spell API instead of List
• Standardize API variable names
• Remove all extensions of Arrow Entity
• Convert Spellbook to implement ICasterTool and use SpellCaster
• Convert IToolTip to use TextComponent and not String
• Delete IProxy
• Move events to a targetted class, i.e. snare listener to the snare spell.
• Remove Spell Resolver constructors that use List instead of Spell
• Change coldsnap to use Vanilla cold damage
• Convert spell parchment to a Caster Tool that stores color and name etc.
• Rename references of Volcanic Accumulator and Mana Condenser to their respective sourcelink

can we make 3rd party glyphs not scary again