Expand logger support to include logdown

[joeyfigaro]

https://github.com/khmm12/knex-tiny-logger/blob/ea1ad120c18371fcfdc3d90d02187076b3c33ca6/src/index.js#L73

Current implementation passes '%s, %s', which ends up just being printed literally by logdown. Simplest way to address would be to just pass the duration and request.