Add a benchmarking simulator for the distributed optimization setup

[nabenabe0928]

Important

This feature could be integrated into OptunaHub rather than into OptunaHub Registry.

Motivation

It is important to compare optimization methods not only in the sequential setups, but also in the distributed setup, which is much more prevalent.
To this end, I would like to suggest to integrate the simulator introduced in Fast Benchmarking of Asynchronous Multi-Fidelity Optimization on Zero-Cost Benchmarks, which was accepted to AutoML'24.

Description

Since Optuna supports the ask-and-tell interface, a benchmarking simulator for the distributed optimization setup can easily be integrated.
For example, see the implementation here.

By integrating such a simulator, it becomes much simpler to benchmark samplers in the distributed optimization setup.