Proposal: Add ManagerNetworkProtocol.Oem.OpenBMC.mDNS

[Joseph Reynolds]

Proposal: Add ManagerNetworkProtocol.Oem.OpenBMC.mDNS.

This is a proposal to add a new Oem.OpenBMC.mDNS property to BMCWeb's 
implementation of the Redfish ManagerNetworkProtocol.
This property would be used to enable and disable OpenBMC's Avahi/mDNS 
discovery service and be similar to Redfish's SSDProtocol

Redfish's direction is to use SSDP as the standard discovery mechanism.  
See discussion here:
https://redfishforum.com/thread/267/add-avahi-managernetworkprotocol

Does anyone agree that giving the BMC admin the ability to enable and 
disable the Avahi/mDNS discovery service is desired?  Please reply to 
this email.
If so, the next step is to design the mDNSProtocol to implement in BMCWeb.

- Joseph