Update gear. Add DW sets.
Hooks for custom state handling aren't needed.  The custom mode can be
discovered automatically.
Gear update
Gear update.
Gear update.
Gear updates
Mass gear updates and set refinements.  Some code updates for Fucho-no-obi.
Gear updates.
Revise all use of state.Buff.  Presume the buff will be true on precast, and
update it on aftercast based on spell.interrupted.
Fix: Buffs that overwrite themselves no longer reset to false if the action was
interrupted, since it also checks for buffactive.