CLI: JSON output format

[jpeddicord]

The library is always going to be the most optimal way to use askalono, but sometimes it's nice to use the binary/cli for a quick test. I'd like to support JSON output for some modes:

askalono id --format=json
askalono id --batch --format=json
askalono crawl --format=json

For modes like crawl and batch, it'll be something like a JSON document for each line, describing one file.

[jpeddicord]

Solved via 983dac4