Move away from defaulting to windows, create OS X support

[cammurray]

As per #67

The defaulting to windows will create DLL errors on other platforms.

[ewilliams0305]

I'll review this shortly but agree with the approach.

[ewilliams0305]

lets go with something more like this or this to make supporting more platforms and abstractions in the future easier. I think the pattern matching will be more readable long term.

public IQueryNetworkNode CreateQuerier()
{
    return Environment.OSVersion.Platform switch
    {
        PlatformID.Win32S 
        or PlatformID.Win32Windows 
        or PlatformID.Win32Windows 
        or PlatformID.Win32NT
        or PlatformID.WinCE =>
            new QueryNetworkNode(
                logger: _logger,
                ping: _ping,
                mac: new WindowsQueryMacAddress(_logger),
                host: new QueryHostname(_logger),
                http: _clientFactory != null
                    ? new QueryWebServer(_logger, _clientFactory)
                    : null),
       
        PlatformID.Unix 
        or PlatformID.MacOSX =>
            new QueryNetworkNode(
                logger: _logger,
                ping: _ping,
                mac: new LinuxQueryMacAddress(_logger),
                host: new QueryHostname(_logger),
                http: _clientFactory != null
                    ? new QueryWebServer(_logger, _clientFactory)
                    : null),
        _ => throw new PlatformNotSupportedException()
    };
};```