UaTcpDiscoveryService.GetEndpointsAsync does not respect TimeoutHint

[trivalik]

If you pass a HintTimeout to UaTcpDiscoveryService.GetEndpointsAsync it still times out with 5 second. The weird thing is that UaApplicationOptions has default timeout of 15000.

I believe the timeout comes from this line

opc-ua-client/UaClient/ServiceModel/Ua/Channels/UaTcpConnectionProvider.cs

Line 18 in 1f1c774

private const int ConnectTimeout = 5000;