Increase abstraction for arbitrary slot get/set operations, and fracture
SAV4 behavior for each game type.
Adds: Undo/Redo of party slot changes
Fixes: Fixed Gen5 daycare slot 2 reading, and EXP reading
Fixes: Some slot color glitchiness
Fixed: Box layout editor now hides the flag label if no flags are
present
Fixed: Gen7 box flags are now shown (unknown purpose lol)
Changed: savefile objects are generally smaller (removed a few shared
offset fields)
A little bit cleaner when the logic is separated
Keep an abstraction of BoxEdit to cache the current box contents.
Already fetched to show sprites; any future fetches (for preview text /
hover sprite) can reuse the already fetched pkm data.
Should probably rewrite this stuff completely, but effort better spent
elsewhere
Remove some unnecessary properties from SaveFile
Enumerate checksum flag results for GC memcard checking
Remove unnecessary checks on savefile type
Add some documentation
Decapitalize some method parameters
remove lockedslots, store & save all teamslots for sav7
differentiate locked slots from overwrite protected slots by emitting an
enum containing info about the slot
locked = can't be replaced, period.
starter/battleteam = can't be pasted over by bulk-pastes
can eventually show more specific sprite layers to denote party
indexes/team#/starter
