[Feature Request] Add support for Newrok Adapter Health status

[miinsun]

Hello, Thank you for maintaining this helpful exporter!

Currentrly, redfish_exporter provides health metrics for components like memory and storage controllers, which is very useful.
However, it would be even more valuable if the exporter could also include the health status of network adapters.

would it be possible to consider adding support for this in a future release?
Thanks again for your great work !!

Suggested Endpoint

The following Redfish endpoint provides relevant data on network adapters:
/redfish/v1/Chassis/Self/NetworkAdapters/{NetworkAdapterName}

Ecample Output

Here's an example response from one of your systems:

{
  "@odata.context": "/redfish/v1/$metadata#NetworkInterface.NetworkInterface",
  "@odata.etag": "W/\"123123123123\"",
  "@odata.id": "/redfish/v1/Systems/Self/NetworkInterfaces/Offboard_0",
  "@odata.type": "#NetworkInterface.v1_2_0.NetworkInterface",
  "Description": "NIC 1",
  "Id": "Offboard_0",
  "Links": {
    "NetworkAdapter": {
      "@odata.id": "/redfish/v1/Chassis/Self/NetworkAdapters/Offboard_0"
    }
  },
  "Name": "Offboard_0",
  "NetworkDeviceFunctions": {
    "@odata.id": "/redfish/v1/Systems/Self/NetworkInterfaces/Offboard_0/NetworkDeviceFunctions"
  },
  "NetworkPorts": {
    "@odata.id": "/redfish/v1/Chassis/Self/NetworkAdapters/Offboard_0/NetworkPorts"
  },
  "Status": {
    "Health": "OK",
    "State": "Enabled"
  }
}