Function build_local_search 

pub fn build_local_search<S, V, DM, IDM>(
    config: Option<&LocalSearchConfig>,
    model: &ModelContext<S, V, DM, IDM>,
    random_seed: Option<u64>,
) -> LocalSearch<S, V, DM, IDM>
where
    S: PlanningSolution + 'static,
    S::Score: Score + ParseableScore,
    V: Clone + PartialEq + Send + Sync + Debug + 'static,
    DM: CrossEntityDistanceMeter<S> + Clone + Debug + 'static,
    IDM: CrossEntityDistanceMeter<S> + Clone + Debug + 'static,