Add option to summary to generate a results csv

[wdower]

Would be helpful if inspec_tools could take InSpec results JSONs and put them in a CSV table, with one row for each control(/test?) including the result. I have had sponsors who want spreadsheets of profile results and presently the best way to do this is to put output in Heimdall and download a CAAT. There should be an option to do this from the CLI to support automatically generating a csv artifact in a pipeline.

[aaronlippold]

I think we added this to Heimdall with the Generic CSV export. When we convert inspec_tools to javascript this should become part of the cli I think.

Is cli support for this now a blocker or a would be nice?