merge netstandard into main (#26)

* #23

* #23 "Newtonsoft.Json" Version="10.0.2"

* owin

* AspNetCore

* Fix appveyor build

* fix start/stop in untitests

src/WireMock.Net/Owin/OwinRequestMapper.cs

@@ -0,0 +1,70 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+#if NET45
+using Microsoft.Owin;
+#else
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Http.Extensions;
+using Microsoft.AspNetCore.Http.Features;
+#endif
+
+namespace WireMock.Owin
+{
+    /// <summary>
+    /// OwinRequestMapper
+    /// </summary>
+    public class OwinRequestMapper
+    {
+        /// <summary>
+        /// MapAsync IOwinRequest to RequestMessage
+        /// </summary>
+        /// <param name="request"></param>
+        /// <returns></returns>
+        public async Task<RequestMessage> MapAsync(
+#if NET45
+            IOwinRequest request
+#else
+            HttpRequest request
+#endif
+            )
+        {
+#if NET45
+            Uri url = request.Uri;
+#else
+            Uri url = new Uri(request.GetEncodedUrl());
+#endif
+            string verb = request.Method;
+
+            string bodyAsString = null;
+            byte[] body = null;
+            Encoding bodyEncoding = null;
+            if (request.Body != null)
+            {
+                using (var streamReader = new StreamReader(request.Body))
+                {
+                    bodyAsString = await streamReader.ReadToEndAsync();
+                    bodyEncoding = streamReader.CurrentEncoding;
+                }
+
+                body = bodyEncoding.GetBytes(bodyAsString);
+            }
+
+            var listenerHeaders = request.Headers;
+
+            var headers = new Dictionary<string, string>();
+            foreach (var header in listenerHeaders)
+                headers.Add(header.Key, header.Value.FirstOrDefault());
+
+            var cookies = new Dictionary<string, string>();
+
+            foreach (var cookie in request.Cookies)
+                cookies.Add(cookie.Key, cookie.Value);
+
+            return new RequestMessage(url, verb, body, bodyAsString, bodyEncoding, headers, cookies) { DateTime = DateTime.Now };
+        }
+    }
+}