Config checker to validate all parameters in the JSONs

[kokbent]

Borrowing the idea from the previous ABM I used, it would be nice to eventually have a config checker that look at what are the keys inside the config JSONs that are not known to DynODE, and what are the keys that are known to DynODE but not found in the JSONs. They are not necessarily errors, but this might help to catch spelling errors.

Maybe this goes along with #291 ?

[arik-shurygin]

I can see this being covered by a possible json-schema implementation in the refactor.