Improve IP parsing in Tugboat.

[FirstGearGames]

Requested by Zoldyk.

here is my trick
Filename: Tugboat/ServerSocket.cs
Line: 141

if (!string.IsNullOrEmpty(_ipv4BindAddress))
            {
                if (!IPAddress.TryParse(_ipv4BindAddress, out ipv4))
                    ipv4 = null;

                if(ipv4 == null) {
                    var address = Dns.GetHostEntry(_ipv4BindAddress);

                    if (address.AddressList.Length > 0)
                    {

                        ipv4 = address.AddressList[0];
                        if (base.Transport.NetworkManager.CanLog(LoggingType.Common))
                            Debug.Log($"Change IPv4 bind to {ipv4.ToString()}");
                    }
                }
            }```

[FirstGearGames]

bump.

[FirstGearGames]

Added in 3.3.0