IBM.H is gone, video stuff re-organized. Keyboard stuff reorganized.
Machines that have their own video, mouse and/or keyboard now have all this in their machine file.
Fixed and other cleanups here and there.
Fixed (hopefully) pass through in the Windows CD-ROM IOCtl code;
Fixed the legacy I/O address handling on the BT-958D, now it behaves correctly - legacy I/O address disabled by default, can be enabled in AutoSCSI (removed the setting from the device config struct);
The BT-958D PCI-configured I/O space now correctly gets 32 ports and not 4.
Two-phases SCSI disk write direction commands (needed for the NCR5380);
Renamed cdrom_ioctl.c/h to win_cdrom_ioctl.c/h and moved them to win/;
Moved some CD-ROM and floppy initialization blocks to the appropriate files.
