HPCC-11300 Add -wall and #option ('all', ...)

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
HPCC-11300 Fix items highlighted in code review

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
Merge pull request #5792 from ghalliday/issue11300

HPCC-11300 Add -wall and #option ('all', ...)

Reviewed-By: Jamie Noss <james.noss@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>