- add FTS in the time window constraint

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

- replace all [ . ] by .at( . )  when looking into a vector

- init the solution with one empty road
- fix bug while init Data
- some tests in the main

- revised some parts of the code
- add some comments
- add config.h and types.h
- data init with the list of Pair
- Solution init and link with constraints

- Add TimeWIndow constraint
- add Capacity constraint
 TODO
- constraint check in O(1)
- consrtaint tests
- use constraints in solution
- full solution checker

- add basic modification for a solution