HPCC-9941 Document FORWARD on MODULE

Signed-off-by: JamesDeFabia <James.Defabia@LexisNexis.com>
HPCC-9941 Document FORWARD option on MODULE

Signed-off-by: JamesDeFabia <James.Defabia@LexisNexis.com>
Merge pull request #4961 from JamesDeFabia/9941DocumentFORWARD

HPCC-9941 Document FORWARD on MODULE

Reviewed-by: Gavin Halliday <ghalliday@hpccsystems.com>