The parallel simulation functionality of the `compute_path` function in mobile scenarios.

[wang-chenlong]

The compute_path function performs parallel computation based on the number of transmitters and receivers in the scene to obtain the RT results for each transmitter-receiver pair. In mobility simulations, if the object in scene remains unchanged and only the receiver positions change, can multiple receiver positions be added simultaneously for parallel computation to speed up the process? This computation result seems to be independent. However, when objects in the scene, such as cars, need to move, how should the setup be configured to achieve parallel computation? This is because the scene seems to be unique in each calculation.