Method stop

tests/BS_thread_pool_test.cpp:3452–3455

* @brief Stop measuring time and store the elapsed time since the object was constructed or since `start()` was last called. */

     * @brief Stop measuring time and store the elapsed time since the object was constructed or since `start()` was last called.
     */
    void stop()
    {
        elapsed_time = std::chrono::steady_clock::now() - start_time;
    }

    /**
     * @brief Get the number of milliseconds stored when `stop()` was last called.