Need rework of options w.r.t. deprecated Power and Thermal resources

[blakehilliard]

Redfish tool gives me these 2 options when targeting a Chassis:

   Power                     -- get the full Power resource under a specified Chassis instance.
   Thermal                   -- get the full Thermal resource under a specified Chassis instance.

These types of resources are now deprecated, in favor of the newer PowerSubsystem and ThermalSubsystem. Either these options should grab the equivalent *Subsystem resource (and maybe it's children too?), or new/separate options need to be provided to get the newer types of resources, so that this tool is not restricted to deprecated data.

[mraineri]

Unfortunately this tool has been deprioritized for other tools (like Redfish Tacklebox); we're certainly open to reviewing pull requests with enhancements though.