Reworking the options to make it work with the new options API.
Also reworked stuff in several spots to use world: NoitaWorld instead of multiworld: MultiWorld
* Noita: Add note about allowable slot names
* Update character list
* Update init to raise an exception if a yaml has bad characters
* Slightly adjust exception message
Shifts the Lake region to be connected to The Laboratory, so that the Lake boss is late game instead of early game.
Shifts the Below Lava Lake region to be connected to the Snowy Depths, so instead of being early game it's early-mid game (since that's when you would be expected to be able to have decent enough digging or a Sädekivi.
Scipio Wright
Fabian Dill
Adam Heinermann