General SOS refactoring for Gen 7

[Bambo-Rambo]

For SOS battles, similarly to Pcalc and CitraRNG there are still issues with the initial seed being slightly off (probably the bit flip thing missing).
Moreover, it seems that its value is not stored anywhere, and it changes after the 1st battle turn (and probably every 624 advances, though I didn't check).
So instead of reading constantly from ram (0x30038C44 for SM and 0x30038E30 for USUM), reader could possibly use wild info to understand when a new battle starts, then store the Initial seed value once.

The following features should also be added:

• Show the current Seed value
• Show index advances
• Show wild info for allies

[zaksabeast]

Thanks for opening an issue! These are good things to note.

I'm going to split Gen 6 Hordes into a separate issue for progress tracking, and keep this issue for Gen 7 SOS.

For SOS, it's also worth considering patching the game to call a Reader function and pass us some of this info when whatever we care about is generated, like seeds or Pokemon. Making it more reaction based could be easier than reading from memory and trying to infer information.

probably the bit flip thing missing

Without looking, that's almost certainly the issue. I remember figuring out that we were all missing that, but there's a good chance I didn't update Reader to account for it.