Detect runs with same hyperparams

[rajeeja]

If evaluation for a set of hyperparameters is already performed, don't run and supply the results from the previous run.

[j-woz]

This is a core feature of the DB component.

[rajeeja]

We need this between iterations of mlrMBO or even better as the runs complete. Is it possible to have the DB component available during optimization runs?

[j-woz]

Yes