The Linux DMI class still does not provide the information we need, and parsing
the blob directly also allows the Dell and Redfish plugins to get the raw data.
This commit provides a new "hwids" subcommand for fwupdmgr that shows the
hardware GUIDs on the local system. It also provides API that plugins can use
to self-disable when a specific HWID does not match.
The GUIDs used in this implementation match that of ComputerHardwareIds.exe
