Support for JSON Schema

[jphastings]

If there's a JSON Schema field referenced (eg. a URL in the /$schema key), or if one has been manually loaded, then load it and use it to display info on each of the keys on hover/click.

JSON Schema can contain a bunch of useful information, like whether the given JSON file is valid (great for writing JSON by hand) or what a particular field actually means and what its contents represent.

Thanks for your consideration!