- call clean empty route for every new best solution
- add new elements in the config  file
- clean up some of the code

- add FTS in the time window constraint

- add a time measurement
- add an iteration measurement

- add initial (maximal) number of routes
- update cost at each iteration of LNS

- add sorting based on demand
- add sorting based on nearest and furthest
- add sorting based on time window

- Sorting strategy and Enum strategy moved as list_heuristic class parameters

- add basic solution Checker
- add random destroy Operator
- revised some parts of the code

- data coherence checker added
- new folders
- new .cpp .h in modification (to do)