Add unit tests for HttpClient with WebProxy (#1010)

* Add test for SSL / Https

* Add unit tests for HttpClient with WebProxy

* cert.pem

* x

* skip

* example google

* revert

* host tests

* sonar

src/WireMock.Net/Owin/HostUrlOptions.cs

@@ -12,8 +12,6 @@ internal class HostUrlOptions
 
     public int? Port { get; set; }
 
-    public int? HttpsPort { get; set; }
-
     public HostingScheme HostingScheme { get; set; }
 
     public IReadOnlyList<HostUrlDetails> GetDetails()

src/WireMock.Net/Server/WireMockServer.cs

@@ -141,6 +141,31 @@ public partial class WireMockServer : IWireMockServer
         return client;
     }
 
+    /// <summary>
+    /// Create a <see cref="HttpClient"/> which can be used to call this instance.
+    /// <param name="handlers">
+    /// <param name="innerHandler">The inner handler represents the destination of the HTTP message channel.</param>
+    /// An ordered list of System.Net.Http.DelegatingHandler instances to be invoked
+    /// as an System.Net.Http.HttpRequestMessage travels from the System.Net.Http.HttpClient
+    /// to the network and an System.Net.Http.HttpResponseMessage travels from the network
+    /// back to System.Net.Http.HttpClient. The handlers are invoked in a top-down fashion.
+    /// That is, the first entry is invoked first for an outbound request message but
+    /// last for an inbound response message.
+    /// </param>
+    /// </summary>
+    [PublicAPI]
+    public HttpClient CreateClient(HttpMessageHandler innerHandler, params DelegatingHandler[] handlers)
+    {
+        if (!IsStarted)
+        {
+            throw new InvalidOperationException("Unable to create HttpClient because the service is not started.");
+        }
+
+        var client = HttpClientFactory2.Create(innerHandler, handlers);
+        client.BaseAddress = new Uri(Url!);
+        return client;
+    }
+
     /// <summary>
     /// Create <see cref="HttpClient"/>s (one for each URL) which can be used to call this instance.
     /// <param name="innerHandler">The inner handler represents the destination of the HTTP message channel.</param>