Add config_manager and utils commands

[marcus-j-davies]

@AlCalzone , @raman325

This PR exposes the lookupDevice method of the ConfigManager class.

I think this should be added, for the following reason.

Often, after scanning a QR Code, front ends might want to display the Device Information, present in the config.

• Label
• Manufatcure
• Description

Generally, specifics about the device, not usually found in the QR its self.
I also use this method, during a Smart Start operation, to advise the user the device is unknown, as the return is either a DeviceConfig or undefined

Example:

You could argue, why not include this by calling lookupDevice during QR Code parsing within the server?
But to allow better 1:1 mapping of the API - I didn't, feel free to suggest otherwise.

Now, I am not too familiar with this code base, so let me know if something is not right with my changes.

[raman325]

I wonder if this should be in a separate config namespace? (so config.lookup_device instead of utils.lookup_device). I know it's a lot to add a new namespace just for a single command but this might be a good place to put other config related methods

[raman325]

or maybe config_manager

[AlCalzone]

I vote for utils.. The config manager isn't going to get any more extensions, so you're looking at 2 methods total (lookup manufacturer by ID and device by fingerprint).

[raman325]

@marcus-j-davies spoke with Al about this. I added all of the APIs for utils and config manager to be consistent. Sorry for the delayed activity on this but we should be good to merge soon!

[AlCalzone]

Just a small clarification