Add Z-Move support in battle tests

[AsparagusEduardo]

Description

#4308 mentioned that Z-moves aren't supported currently.

Version

1.8.1 (Latest release)

Upcoming/master Version

No response

Discord contact info

AsparagusEduardo

[mrgriffin]

It's been a while, but I think the problem with Z moves is that they don't go through the battle controllers and so aren't available in recorded battles (and probably not link battles either?). This is unlike Mega Evolution and Dynamax, which are represented in the battle controllers (as flags attached to the index of the move being used iirc).

[Bassoonian]

Fixed by #4449