Updated default pack-scan format and updated dmidecode commands

[mdvickst]

• Added additional columns to the pack-scan report generated by the initconfig command. The current pack-scan format does not include error, auth.name, and auth.username fields that are helpful when troubleshooting. The other fields are added to get additional visibility into all fields Rho can collect.
• replaced some key dmidecode commands that used switches not available on older versions of RHEL with commands that work on all versions of RHEL.