[FEAT] Group drives in UI by system

[claysam75]

Describe the solution you'd like
I pull metrics from three different systems into one scrutiny ui instance, so I have multiple instances of SDA, SDB, SDC etc. To be able to either group drives together by system or even to just be able to label each drive with a friendly name would make it far easier to distinguish each drive in a meaningful way.

[AnalogJ]

This functionality is now available. Included in v0.4.7 🎉

When provided, the host-id is automatically used in the UI to group together disks on the same system.

The host-id is passed from the collector to the web-api when SMART device data is uploaded. There's 3 ways you can set the host-id:

• using the collector config file: https://github.com/AnalogJ/scrutiny/blob/master/example.collector.yaml#L19-L22
• using the --host-id collector CLI argument: https://github.com/AnalogJ/scrutiny/blob/master/collector/cmd/collector-metrics/collector-metrics.go#L180-L185
• using the COLLECTOR_HOST_ID environemental variable.