Level = Level is equivalent to Level = 0
update EggInfoSource to use Level instead of LevelMin (LevelMin returns
Level, just be clear on usage)
update VerifyCurrentMoves so that only gen1/2 do the gen1/2 move update
methods. Recently extended all encounters to have a generation property;
we only care about gen1/2 here.
https://projectpokemon.org/home/forums/topic/43655-pokemon-crystal-egg-mark-as-not-legit/
fetch is exclusively done with version already known; there are cases
where version can change for eggs so it's safer this way.
version change reference (gen6+):
212a489335
