HPCC-9338 Add --no-files option to ecl-publish

Add --no-files option to prevent ecl-publish from copying DFU file
information used by the query to the target cluster.

Signed-off-by: Anthony Fishbeck <Anthony.Fishbeck@lexisnexis.com>
Merge pull request #4443 from afishbeck/publishNoFiles9338

HPCC-9338 Add --no-files option to ecl-publish

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>