Fix MonadTrace interfaces duplicates (by moving to co-log), get rid of logMsg and format logs as JSON

[uhbif19]

Follow-up for #217

Updated

Now we have two MonadTraces. Using of fundeped one could help to remove logMsg completely, by leveraging structured message embedding.

But it seems like co-log already implement all the same as we trying do. Also some of our utilities seems to not work properly and they probably have more thoughtful types. Also they have solution for concurrent logs (which we have minor bug about).

I dropped all Hydra Traces usage, but if they will be needed again, we can easily support them cuz LogAction is essentially the same.

JSON is better then current formatting with pretty-printing cuz instances could be derived, JSON logs are supported by various tools, and Hydra /Cardano use them too.