RayEvaluator does not accept partial functions

[Deathn0t]

The ray evaluator method="ray" does not accept functools.partial so the run_function has to be redefined as follows in the different benchmarks:

    @property
    def run_function(self): 

        def run_function_wrapper(job, **kwargs):
            return run_function_base(job, bb_func=ackley, **kwargs)

        return run_function_wrapper

where run_function_base is from cbbo_benchmarks.utils import run_function as run_function_base.