Trip sampler

The trip sampler uses data from the surveys to sample trips for a given list of persons, using the get_trips method.

You can find an example of this model in <https://github.com/mobility-team/mobility/tree/main/examples/Millau>.

The trip sampler uses the safe_sample module to ensure we do not use non-reprentative data (from a group below the minimal sample size).

The surveys data (from INSEE) is retrieved thanks to the get_survey_data module.

It is completed by the get_insee_data module for other INSEE data.