* WIP replacing lib/pq
* change timezome param to be URI format
* add changelog
* add changelog for redshift
* update changelog
* add test for DSN style connection string
* more parseurl and quoteidentify to sdk; include copyright and license
* call dbutil.ParseURL instead, fix import ordering
Co-authored-by: Calvin Leung Huang <1883212+calvn@users.noreply.github.com>