addresses issue 188

This class defines additional forwarding rules to let root containers
reach external networks when using Netavark (since v4.0) or CNI (deprecated).
At the time of writing, Podman supports automatic configuration
of firewall rules with iptables and firewalld only.

Add example how to redirect traffic from one port to another.

Example how to redirect one port to another

Additional rules for podman root containers

nftables::simplerule::dport - takes port ranges as part of the array

Useful when you want to allow docker/podman containers
access to a hosts dns stub resolver.

```puppet
class{'nftables::rules::dns':
  iifname => ['docker0'],
}
```

Support input interface specification to dns server

Release 3.5.0