Schema Command Should Support Structured Output

[dbready]

Stumbled upon this project and it looks like a real missing link in parquet tooling.

For the schema subcommand, it would be nice if there was an optional way to output the data in a structured way (eg json) for consumption by other tools. Something like pqrs schema data.parquet --json. Ideally both the simple and detailed flags, but even capturing only the non-detailed data would be handy.

[manojkarthick]

Thanks @dbready - that's a good idea, I will look into this feature.