First tests in org.eqasim.core

[tkchouaki]

The goal of this PR is to move towards a higher test coverage in Eqasim. We start here by testing functionalities of the core module on a sample scenario.
Key elements in this PR (not necessarily in the order of the commits):

• A small scenario corresponding to the area of Melun in Ile-de-France is added as a resource of the module. This scenario results from a 10% synthetic population of IdF cut around the area and keeping only persons that have all their activities inside the area.
• The tool for removing persons with certain activity types.
• Fixing the reading of public transit events from events files during trip and leg analyses. They were not converted from GenericEvent to PublicTransitEvent previously, so they were not processed by the event listeners.
• The unit test:
  • Performing a simulation of Melun
  • Running the various analyses (trips, legs and pt legs) from the resulting events and checking that the files generated by the run scripts are identical to the ones generated by the EqasimAnalysisModule during the simulation
  • Running the export to shapefile tools (schedule, stops and network)

With this PR, the coverage of the tests in the core module goes from 15% of the classes to 45% (for the lines it's from 13% to 32%)