Changes
'''Usifac II schematics''' & raster implementation:https://www.cpcwiki.eu/forum/index.php?msg=212833
Simple way to detect USIfAC II:https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/usifac-iimake-your-pc-or-usb-stick-an-hdd-for-amstrad-access-dsk-and-many-more!/msg213269/#msg213269index.php?msg=213269
Load '''CPM PLUS''' for USIfAC II (mass storage support): https://www.cpcwiki.eu/forum/applications/hdcpm-boot-and-run-cpm-plus-from-hard-disk/
