[simulators.gateway] Update forwarder with new logger
[simulators.gateway] Update forwarder with new logger

TheThingsNetwork/ttn,jvanmalder/ttn,jvanmalder/ttn,LoRaWanSoFa/ttn,mgranberry/ttn,LoRaWanSoFa/ttn,TheThingsNetwork/ttn,jvanmalder/ttn,TheThingsNetwork/ttn,mgranberry/ttn,mgranberry/ttn