display bmc firmware version and access link

[timogoebel]

The list of hypervisors should contain a link to the BMC and display the bmc firmware version.

The firmware version can be gathered using a "sensor reading":

runtime.healthSystemRuntime.systemHealthInfo.numericSensorInfo.find { |sensor| sensor.name == 'Dell Inc. BMC Firmware (node 0) 46:10000 2.52' }

For Dell: Dell Inc. BMC Firmware (node 0) 46:10000 2.52

For HP: Hewlett-Packard BMC Firmware (node 0) 46:10000 1.30

[chris1984]

@timogoebel can I work on this one?

[timogoebel]

@chris1984: Sure, go ahead.