Forward the entire PSU Status struct

[JackNewman12]

Should be very simple to import the entire Status from the Ka3005p driver:
{"voltage":0.0, "current":0.0, "power":false}
to
{"voltage":0.0, "current":0.0, "channel1": "CV","channel2": "CV","beep": "On","lock": Unlocked,"output": "On"}

Note this ticket doesn't involve updating the web interface to show all this data. (Is this extra data even useful for the user?)
This is simply so we don't have to redefine the state struct ourselves.

[JackNewman12]

Ehh actually this would be way easier if the ka3005p library added Derive(Debug, Serialize) to the status structure. Although we would still need to add some sort of LastUpdateFailed flag.