Add try/catch for all data import processes

Fusionnées jaster a demandé de fusionner jaster/memopol:master vers master

All import processes now use a general try-catch during the import of each data item. This ensures that even in the event of an error (due to a malformed data piece for example), the import process will continue.

Errors caught this way are logged at the debug level.

Rapports de requête de fusion