Function build_termination 

pub fn build_termination<S, C>(
    config: &SolverConfig,
    default_secs: u64,
) -> (AnyTermination<S, ScoreDirector<S, C>>, Option<Duration>)
where
    S: PlanningSolution,
    S::Score: Score + ParseableScore,
    C: ConstraintSet<S, S::Score>,

Builds a termination from config, returning both the termination and the time limit.