Implementation of SCSI support in libhimd

SCSI commands are used for various service commands over USB sent to HiMD devices. These include:

• Formatting a disc
• Determination of disc ID
• …

• Overview of HiMD SCSI command set
• SCSI commands employed for DRM
• https://lists.fu-berlin.de/pipermail/linux-minidisc/2010-December/msg00000.html