kraken: aggregate odt
kraken: refactoring
kraken: aggregate odt for line and route objects
kraken: remove get_odt_level from journeypattern
kraken: delete get_odt_level and corrections of tests
Types: begin to fix journey_patterns
Type: make odt_types simpler
Merge pull request #1 from l-vincent-l/fix_PR_refacto_jp_odt

Fix pr refacto jp odt
All: update data_version
Kraken: use struct in jp for odt_properties
Merge pull request #2 from l-vincent-l/fix_review

Fix review
Merge pull request #789 from azime/refacto_jp_odt

Refacto jp odt