HPCC-12642 Add link/Release implementations that are not thread safe

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
Could you clarify when you'd really want to use one of these (with a comment in the code) ?
An object that can't be link counted and isn't thread safe to release...
If you know it's that class of object, why bother with it being a Link/Release based object?