As a user I want to interact with Flux via JSON

As a user I want to be able to interact with Flux easily using JSON. This means being able to do the following:

* Parse JSON into Flux tables
* Return responses from Flux queries in a JSON format

With both the ability to consume JSON from Flux and to output JSON Flux will be able to interact with many systems without the need for any translation layer/gateway.

The issue names no files, tests, or entry points. Start by locating Flux's table input path and query response path, then determine how JSON should be parsed into tables and emitted from query responses; done means Flux can consume JSON and return query results as JSON without a translation layer.

Written by the indexing model from the issue text.