Introducing a new PKM format: SK2
Split ICaughtData2 off of PK2 so it can be shared with SK2 when type-checks occur
Add conversion for PK2<->SK2
Split the split-buffer handling for GBPKM to GBPKML (what a name), so that I can reuse shared accessor logic for SK2.
Move logic closer to where it is used rather than in larger static classes
EncounterStatic(7): move VC transfer template creation to class, simplify some sanity checks
EvoChain: g==2 case is never hit as the generation check at the top of the loop already skips
Get the variable rather than indexing into the array each time
Simplify some expressions in sav7 for readability
Make SAV_EventFlags use comboitem explicitly by type rather than an anonymous type with same member names
Thanks MrPerson0 on discord for notifying us of this mechanic. Stadium 2 can utilize Gen1 learnset data while keeping them in PK2 format, retaining the met data.
held item list now allocates less (concat arrays instead of ienumerables)
item list already prunes out of range items, so simplify data source fetch
simplify item list prune (return as list, so we can call RemoveAll instead of Where.ToList)