Teambuilder: update EV guesser (#1220)
Teambuilder: update EV guesser (#1220)

Adds basic support for Metronome Battle as well as having Sand Stream on Rock types other than Tyranitar
sirDonovan/Pokemon-Showdown-Client,Zarel/Pokemon-Showdown-Client,sirDonovan/Pokemon-Showdown-Client,Zarel/Pokemon-Showdown-Client,Zarel/Pokemon-Showdown-Client,Zarel/Pokemon-Showdown-Client,sirDonovan/Pokemon-Showdown-Client,sirDonovan/Pokemon-Showdown-Client