1.63.15

Cheat Editor Enhancements:

• Win32: cheat editor changes now apply live instead of waiting for the dialog to close

SGB:

• gate BIOS artifact-cleanup memsets on sgb_flag == 0x03 — the BIOS artifact-cleanup
  memsets (added in PR #63 for SGB Tetris/Tetris Plus stripe fixes) are now gated on sgb_flag == 0x03, so they only run
  for actual SGB carts and don't regress plain SNES titles.