HPCC-12642 Add link implementations that are not thread safe

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
HPCC-12642 Updates following review

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
Merge pull request #6698 from ghalliday/issue12642

HPCC-12642 Add link/Release implementations that are not thread safe

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>