Create data base client to collect arbitrary data remotely

[evan-forbes]

In order to get deeper introspection into what is occurring from a network perspective, we have to have a way to collect arbitrary data from many nodes in a single place, and that data needs to be easy to store and backup. That means that we should store the data in a super simple schema first before we actually load it into a different data base that has deeper query functionality. It needs to be able to handle trace level data collection, meaning that we want to be able to store summaries of which msgs were sent to each peer.

blocking #963 #962 #939
essentially completes celestiaorg/celestia-app#1352