SCSI CD-ROM: request sense command should preserve its sense data unless a different command is issued, fixes DOS hanging with a blinking cursor using CDSCSI-2.sys for the 53c9x MCA card when there's no CD inside, making its no length Data In hack no longer needed.
All: the icon refresh for the respective storage now works properly across all adapters that use it (especially the aha154x compatibles and spock/tribble).
SCSI CD-ROM: The Sony/Texel/DEC SCSI command 0xC0 (Set Address Format) isn't a command that checks for ready status, however, it is for other vendors like NEC, Matsushita, etc. and I am not wishing to create a duplicate command_flags array duplicate just for vendor unique commands. This fixes the MSF bit of Sony/Texel/DEC CD-ROM drives which don't use the Mode Page equivalent.
Toshiba only: attempt to mark the 3201B as a SCSI-1 only CD-ROM drive properly.
CD-ROM side: fixed a mode sense page (0x08 Sony, used by both Sony and Texel drives) as well as corrected the Toshiba specific drive speeds (bytes_per_second).
NCR 5380 side: split the work into the generic 5380 core and the ASICs into separate sources (53c400 and T128) and added the T228 MCA adapter based on the 128.
1.Re-implemented in the best way possible the muted part of the Toshiba/NEC Play Audio commands and related, per spec.
2. Forgot to add a check to a Sony Vendor Data Out command when the len is 0 it should become a Status command, fixes emulator crashes when len is 0 using some CD software.
1. Added Mode Page Codes 0x00 and 0x03 (Unit Attention and Format Device) to the SCSI CD-ROM code.
2. Corrected the Read Disc Information TOC (actually Read TOC vendor unique) for NEC SCSI CD-ROMs, this, together with the fix above, fixes reading data cd-rom's using NEC vendor commands.
3. Actually identify NEC drives per manual (SCSI unknown version per the -75 and -77 manuals).
4. Re-added the 75 and 77 drives now that the NEC vendor commands are fine + an extra 25a drive with revision 1.0a (from a screenshot from vogons).
