Align with native_simulator's upstream main
ae241af736d06874ec02deb9aacb79918d745aba
Which includes:
* ae241af native timer_model: Allow calling into get_host_us_time
Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
Add the first version of the native simulator.
The simultaor is taken as is from
https://github.com/BabbleSim/native_simulator/
sha: 74986abfe088a1780e604dae65f87470b4c2a0eb
Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>