The game uses 0x5E if 0x5A+everstone, otherwise it uses 0x58
For determining the seed species-form, we want to use everstone breeds as that resolves to the correct species-form values.
Co-Authored-By: Lusamine <30205550+Lusamine@users.noreply.github.com>
Co-Authored-By: Marty-D <1645989+Marty-D@users.noreply.github.com>
Handle yielding in the moveset generator as well
Future commits will trim down unused values/abstractions; probably can get all the stadium stuff handled innately
