Is your feature request related to a problem? Please describe.

We should think of a mechanism to be able to:

1. execute the CSV validation on a limited subset of files
2. GTFS validation on this same subset of files

We must take into account that some files are linked fro example routes.txt, trips.txt, stop_times.txt. Therefore excluding trips.txt means that stop_times.txt would also be excluded from the GTFS validation.

NB: This process should take place in Main.java. See

Describe the solution you'd like

We think about excluding for example shapes.txt. The solution would allow to exclude specific files through command line.

Describe alternatives you've considered

Additional context