Ensure that awaits do not continue on the captured context. (#370)

* Ensure that awaits do not continue on the captured context.

* Make functions async for maintainability.

* Add documentation detailing the use of UIFact.

src/KubernetesClient/Kubernetes.WebSocket.cs

@@ -273,7 +273,7 @@ namespace k8s
             {
                 // Copy the default (credential-related) request headers from the HttpClient to the WebSocket
                 HttpRequestMessage message = new HttpRequestMessage();
-                await this.Credentials.ProcessHttpRequestAsync(message, cancellationToken);
+                await this.Credentials.ProcessHttpRequestAsync(message, cancellationToken).ConfigureAwait(false);
 
                 foreach (var _header in message.Headers)
                 {