Latest MiSTer core updates

Check out the latest core updates for MiSTer FPGA below!

ZX Spectrum:
– Added option for narrow border.

– Tweaks in PSG (Ramón Martínez).
– Tap support, alternate bios loading, four floppy drives (Flandango).
– Updated framework.

– PSX: CD fix (zakk4223).
– Video: wallpaper folder name follows config INI name.
– OSD: reflect global volume status when changed by keyboard.
– input: Controller unique mapping (Martin Donlon).
– input: added selective controller unique mapping (for DIY and other quirks).