message: changed set_termination_reason to new interface
diff: @@ -168,8 +168,7 @@ where
  self.r = self.r_0.clone();
  if self.r_0.norm() < self.epsilon {
  - self.base
  - .set_termination_reason(TerminationReason::TargetPrecisionReached);
  + self.set_termination_reason(TerminationReason::TargetPrecisionReached);
  let best = self.p.clone();
  self.set_best_param(best);
  }
  