Getting the best result

[joyouskoala]

After tuning, we can print or save the best configuration using save_final_config. However there is no similar function to automatically save the best result obtained from that config.

[joyouskoala]

At the moment the way to do this is to use

self.driver.results_query(config=configuration, objective_ordered=True)[0].time

in save_final_config, but this is nontrivial.

[jansel]

Adding a helper function to make this easier would be a good improvement.