test: test async-hook triggerId properties

Add tests for checking the behavior of async_hooks.triggerId.
It should return different ids when called in callbacks having
different ancestry paths.
It should return the same id when called in callbacks having
the same ancestry path.

PR-URL: https://github.com/nodejs/node/pull/13328


Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>