Support for OpenRMC v1.0

[jcleung5549]

A northbound interface of a rack manager has been prescribed in OpenRMC v1.0

• Usage Guide - https://www.opencompute.org/documents/openrmc-1-0-0-usageguide-final-b-1-pdf
• Profile - https://github.com/opencomputeproject/HWMgmt-OCP-Profiles/blob/master/OCPRackManagerController.v1_0_1.json

The profile prescribes the additional top level resources

• Managers
• Registries
• TaskService
• TelemetryService
• UpdateService (to update the firmware on the rack manager)

[taskin-ucpinar]

This is a good requirement. We are looking for volunteers to implement it.