Feature request: NextRow

[flowchartsman]

This is a great lightweight framework, but I wish it had the ability to read one row at a time. I have some larger queries that I can't afford to pull completely into memory. Maybe something like a callback where a false return means "I'm done fetching rows now"?

[eaigner]

If you require NextRow in some cases, you can still fallback to the default Go database/sql.DB object that Jet exposes at the moment.