v1.18.2

Release 1.18.2

* add `RedistributeSearch` heuristic
* add `diversify` method to hyper-heuristics to increase population
  diversity when search stagnates
* use experimental mode to print dynamic heuristic statistics
* random trait internals
* refactor multi trip functionality
* use faster hash builders inside `RouteState` and `Dimensions`
* update dependencies