HPCC-11317 add support for filtering WUListQueries by file used

WUListQueries will now support specifying a file name, such that only
queries that use that file will be listed.

Signed-off-by: Anthony Fishbeck <anthony.fishbeck@lexisnexis.com>
HPCC-11317 Move list queries using file checking into CWorkUnitFactory

Signed-off-by: Anthony Fishbeck <anthony.fishbeck@lexisnexis.com>
Merge pull request #5870 from afishbeck/listqueriesbyfile

HPCC-11317 add support for filtering WUListQueries by file used 

Reviewed-By: Kevin Wang <kevin.wang@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>