Define mobility message contracts

[tigroo]

GIVEN I decided to create a new ITS message among CAM, DENM, CPM, information or status WHEN I use the provided JSON schema file as specification to build the message THEN I will be able to validate the format

• [ ] ETSI ITS messages
  • [ ] CAM
  • [ ] CPM
  • [ ] DENM
• [ ] Orange ITS messages
  • [ ] Information
  • [ ] Status
• [ ] remove the bad ls contract
• [x] validate the contracts into the GitHub workflow
• [ ] standardize the header for all the messages (review cross the files)
• [ ] align the version for the first packaging

[nbuffon]

ls script is actually used in the validation workflow to list all the schemas that has to be validated
In the same workflow the validate script uses the output of ls one to validate each yielded script