Fixes #21 - Changes spellbook section to simply be 1 list of spells with options embedded within each row for the type of spell/mechanic needed.  This means the sheet now primarily separates on the type of action rather than the mechanic behind a type of action.  Will likely need to add more spell book pages/rows but the helper scripts to auto generate the spellbook sections have also been consolidated into a single section meaning that this will be a trivial effort