Introduces an option to disable reading .bak / "backup" files; trickle the changes up to all surface users so that SAV_FolderList can correctly load all .bak saves into its Backup tab.
The "ignore backups" was added in the latest feature push to ignore "backup" from being detected as the latest save.
* Providing pkm/sav files via command line (dragging files onto exe / associated file launched) will more intelligently source a partner sav/pkm object if not provided.
* Gen1/2 mainline save files now indicate if they are VC era or GB era (legality implications) in the program title bar.
* Fixes loading VC era save backups not being recognized as VC era (`.bak` extension hides `.dat`)
* Export BAK moved to the SAV tab, which allows Export main to be deleted and Export SAV to be used as the single-click for exporting saves. `CTRL-E` is still the hotkey.
