In this PR each geopackage stores the connection object (and in the future possibly other things) in an internal environment <geopackage>$env
allows for in-place gpkg_connect() with no assignment into user/parent env (replacement for attempt in #9), as the environment can be updated with the result object still pointing to same reference
In this PR each geopackage stores the connection object (and in the future possibly other things) in an internal environment
<geopackage>$envgpkg_connect()with no assignment into user/parent env (replacement for attempt in #9), as the environment can be updated with the result object still pointing to same reference