AltForm & Form & Forme => Form
GenNumber & Generation => Generation
Extract out SpeciesForm interface, and re-add IGeneration
For those using PKHeX as a dependency, this should be a pretty straightforward manual replacement... GenNumber and AltForm should be quick find-replace`s.
Handles conditions when Ability Patch has been used to modify the PKM's ability => hidden ability.
Per the description, it goes 1/2=>H, not the other way around.
Verify ability bit first, as mystery gift case handling skips the bit check logic :P
