[Feature Request]: Finish implementing the NATS example in PLC4J (Possibly add one for PLC4Go)

[chrisdutz]

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What would you like to happen?

It seems the NATs example in the Java examples is not finished.

Programming Languages

• [X] plc4j
• [X] plc4go
• [ ] plc4c
• [ ] plc4net

Protocols

• [ ] AB-Ethernet
• [ ] ADS /AMS
• [ ] BACnet/IP
• [ ] CANopen
• [ ] DeltaV
• [ ] DF1
• [ ] EtherNet/IP
• [ ] Firmata
• [ ] KNXnet/IP
• [ ] Modbus
• [ ] OPC-UA
• [ ] S7