Try more realistic values for timeBetweenVehicles for the different modes and according to json file

Try some more realistic values (4 days for short sea, but 2 days when goods come from Le Havre, + remove river and maritime)

Move the building creation outside of the init method (so when I delete FC, I don't have Buildings alone)

When vehicles leave building, we update the date of the last departure (used by transport.organizer plugin)

Don't use anymore function provided by forwardingAgent to compute distance between provider and LSP (use native one instead)