HPCC-11577 Export Users option missing from Permissions

Fixes HPCC-11577

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge pull request #6005 from GordonSmith/HPCC-11577

HPCC-11577 Export Users option missing from Permissions

Reviewed-By: Miguel Vazquez <miguel.vazquez@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>