nbft: added NBFT v1.0 table support

nbft: added NBFT v1.0 table support

Added support for parsing the contents of the NBFT table (per NVMe-oF
boot specification v1.0) with the connect-all and discover commands.

nvme discover/connect-all --nbft ignore /etc/nvme config and use NBFT tables
nvme discover/connect-all --no-nbft ignore NBFT tables and use /etc/nvme config
nvme discover/connect-all --nbft-path=<STR> user-defined path for NBFT tables

Signed-off-by: Stuart Hayes <stuart_hayes@dell.com>
Signed-off-by: Martin Belanger <martin.belanger@dell.com>
Use the new nbft public API.

Signed-off-by: Tomas Bzatek <tbzatek@redhat.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: John Meneghini <jmeneghi@redhat.com>