IEnumerable doesn't support LINQ methods, only the generic variant does. So this commit changes SAV_GameSelect's parameter to a generic IEnumerable of the only type being passed into it. I didn't realize it until afterward, but this is 100% the way it should have been because the databinding members expect ComboItems.
Combo items are now localized automatically by specifying the game IDs
and using the gameinfo values. (odd style is to support eventual message
localization).
program title now indicates XD/C/Batrev instead of just SAV(generation)
Adds game selection subform for RSEFRLG/Memcard game selection
Backs up entire memory card instead of just gci when loading from
memcard
Reduce string usage (easier dialog translation if that ever happens)
Does the memory card store date last saved? Could be used to autodetect
the last saved game and load directly instead of selecting.
