New port: devel/ksql

Ksql is a "lazy man's" wrapper for the SQLite C API. It is written to
make sure sloppy programming won't cause your SQLite database to be
inconsistent (transactions and statements open on exit and certain
signals). Specifically, it exits on any database errors; and upon
exit (or signal), cleans up open statements, transactions, and
databases.

WWW: https://kristaps.bsd.lv/ksql/

Approved by: lme (mentor)
Differential Revision: https://reviews.freebsd.org/D9896