HPCC-10924 Merge roxie endpoint results for control:queries

Also update WsWorkunits::WUQuerysetDetails to reflect change.

Signed-off-by: Anthony Fishbeck <anthony.fishbeck@lexisnexis.com>
Merge pull request #5658 from afishbeck/optControlQueries

HPCC-10924 Merge roxie endpoint results for control:queries

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>