#706 Merge 3.11/706_line_association_hafas into 3.11/sprint
- Fix loading of continuous services waiting time
- Added logic to load a JourneyPattern into the CommercialLine matching the shortname
- Testing done using robot framework: see synthese/end_to_end_tests!6
- Improved the GetServiceByCode service to be able to use it from the robot framework (and keep backward compatibility in the behaviour)