How to test for "IfImplemented"?

[mraineri]

Currently the usage of "IfImplemented" is to cover cases where the Redfish service doesn't need to implement a property or resource if the underlying functionality is not present in the hardware. For example, if a system is built without fans, then the "Fans" property in "Thermal" could be marked as "IfImplemented". But there isn't a good way to test for this (at least exclusively through Redfish). Maybe we need a hardware configuration file to describe the underlying hardware architecture of a given system to help validate a profile.