Tweaks to system information reporting

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I discovered that the dmidecode command can pull out a lot of stuff useful for hardware diagnosis from the SMBIOS. One really useful thing is that we can extract the Dell service tag using:

$ sudo dmidecode -s system-serial-number

In addition to some other probes to extract info in this way I have added a link on the bcfg2 info dump to the Dell support page for the server with that tag. This will allow for better identification and determining if support contract is still covering the server. For example, here is the info for our latest addition metis