bkk-ref adat frissítés

A 97E, 116, 146, 146A, 250, 262, 276E, 937, 950 és 998-as továbbra is
hibás.
OSMMerger: sort routes before merging
YaGTFS: allow adding the block_id after departures

format: (service_id?)-(departure)(A/accessible)?-(block_id)?
YaGTFS: agencies may be in a single array, instead of multiple documents

References may be used between agencies -> useful for using the same services
Add Bakony Volán feedmanager: (Pápa)+Várpalota+Zirc