HPCC-8762 Ecl packagemap list/info needs to support authentication

Signed-off-by: Stuart Ort <stuart.ort@lexisnexis.com>
Merge pull request #3949 from stuartort/pkg_listldap

HPCC-8762 Ecl packagemap list/info needs to support authentication

Reviewed-By: Anthony Fishbeck <anthony.fishbeck@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>