test_runner: add initial draft for fakeTimers

Signed-off-by: Erick Wendel <erick.workspace@gmail.com>
PR-URL: #47775
Backport-PR-URL: #49618
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>

Author: ErickWendel