HPCC-9678 Document ecl bundle commands

Signed-off-by: JamesDeFabia <James.Defabia@LexisNexis.com>
Merge pull request #4652 from JamesDeFabia/hpcc9678_Document_ecl_bundle_commands

HPCC-9678 Document ecl bundle commands

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>