Changes
*'''Sultan's Maze.dsk''': does need the right part of keyboard (F0-F9 are used for directions in this game)
*'''Orion Primes.dsk''': does display "secteurs entrelacés" - "vérifiez votre copie", a FDC problem.
*'''Nigel Mansell's Grand Prix.dsk''': Only one race track seems ok : Monaco, and only just after disk insertion. It's about tracks, a FDC problem.(Certainly at line "BOT:=BOT+x"01"; -- no brain" of file simple_DSK.vhd)
'''Arkanoid.dsk''' stars use rupture address (changing address several time during display of one image), it is now supported on "candidate 001" version of FPGAmstrad
