Kraken: add Unit test with less fallback

Conflicts:
	source/routing/tests/raptor_test.cpp
Kraken: add a total_arrival time to solution

This is the arrival time at the destination
Kraken: fix comparisons in walking_time
Kraken: work on departure journey pattern point in getWalkingTime

We were working on destination journey pattern point
Raptor: remove useless parenthesis
Merge pull request #663 from l-vincent-l/fix_less_fallback

Fix less fallback