improved Brittle Bones curse's fall damage calculation

renamed 'Temple Smith' to 'Artisan'

NEW Spell: Spray & Pray
Drastically speeds up shuffle wands

Each spell in your shuffle wand gains:
4x lower cast delay
2x lower recharge time
-5 mana cost

Has no effect on non-shuffle wands.

NEW Perk: Spell Courier
A helpful little rat may restock a sold spell, faster than the eye can see!

Whenever you buy a spell, there's a 50% chance for another spell to spawn.
The spawned spell's price is always halved as if it were "on sale".

Temple Smith BUFF
Taking a temple's heart OR refresher will downgrade the Hammer instead of destroying it.
The weaker Hammer will upgrade only your held wand, instead of all wands in your inventory.
Taking the temple's heart AND refresher will still destroy the Hammer.

Emergency Injection BUFF
Emergency Injection will now automatically be used below a certain HP threshold.
(default 5%; can be changed to 1-20% or disabled in mod settings)

Individual spell/perk toggles
Spells and perks can now be individually enabled/disabled in mod settings.
(thanks Evaisa for the code)

buffed Expand Mana spell

- added "Temple Smith" perk (sacrifice HM heart + spell refresher to upgrade all wands)
- nerfed "Evolving Wands" perk (now only upgrades your held wand)
- added "Three Blessings and a Curse" perk (gain a curse to obtain all of the HM's perks)

fixed the damage formula of the weakened viral infection debuff

updated Master Of Lightning: stun protection removed, non-damaging projectiles no longer electrocute materials

removed test wand spawn (oopsie)