v1.9.1

• Add option to boot with alternate retro cores if multiple cores are available.
• Settings screen updated to allow configure alternate retro cores
• Saves the selected retrocore for each game.
• Saves the Adrenaline Boot Settings for each game. Implements feature request #5
• BUG FIX: Fix crash when EBOOT/ISO param.sfo is missing the DISC_ID attribute. Fixes issue #6
• BUG FIX: In Scrolling Grid View sometimes the thumbnail does not load, especially for Retro titles.