HPCC-8678 Add ecl cli support for adding comments published queries

--comment option will add a comment string to a published query.

Can be used with ecl-publish, ecl-queries-copy, and
ecl-queries-config, and will display via ecl-queries-list.

Signed-off-by: Anthony Fishbeck <Anthony.Fishbeck@lexisnexis.com>
Merge pull request #3909 from afishbeck/comment8678

HPCC-8678 Add ecl cli support for adding comments published queries

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>