Refactor local search #36
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The motivation for this PR is to decouple the evaluator operator from local search. The evaluator should have no side effects, it should just produce fitness values.
For now, local search functionality has been moved into the offspring generator, but it would probably be a good idea to make it into an independent
LocalSearchOperator.Two new CLI parameters are introduced:
local_search_probability: allows local search to be applied with a probabilitylamarckian_probability: specifies the probability that the optimized coefficients are written back to the tree individual.