Request: Allow hostnames in addition to ip addresses in config

[Hermarcel]

It would make changing addresses in the network much simpeler if hostname (incl hostname.domain of course) in addition to just ip adresses.

and, perhaps, allowing "- ip:" and/or "- name:" for "source:" , just as it is for "target:"
This would improve consistency.

Like this:

# Configure NibeGW
nibegw:
  udp:
    # The target address(es) to send data to. May be a multicast address.
    target:
#      - ip: 192.168.0.10
        - name: ha.mydomain.local
          port: 9999

    # List of source address to accept data from, may be empty for no filter
    source:
#      - 192.168.0.10
      - ha.mydomain.local
    # Optional port this device will listen to to receive read requests. Defaults to 9999
    read_port: 9999

    # Optional port this device will listen to to receive write request. Defaults to 10000
    write_port: 10000

[elupus]

Ip can change while running. So we would need to refresh this all the time. That said. I've opened a change in #129 where target is no longer needed.

In theory you can also skip the whole source section after that is merged since we validate the incoming packet better. Still risky and it will log warnings on invalid messages. But less risky at least.

[Hermarcel]

Great. Thanks!