SocketRule connection should be tested on construction, not on first call

[rkm]

IsIdentifiable/IsIdentifiable/Rules/SocketRule.cs

Lines 54 to 62 in 1c42508

	public RuleAction Apply(string fieldName, string fieldValue, out List<FailurePart> badParts)
	{
	if (_stream == null)
	{
	_tcp = new TcpClient(Host, Port);
	_stream = _tcp.GetStream();
	_write = new System.IO.StreamWriter(_stream);
	_read = new System.IO.StreamReader(_stream);
	}