Solved issues #204 #205 #200

* Lower priority from Proxy mappings

* Fix codefactor

* extra tests

* #205

* Fix test for linux

* `c:\temp\x.json` fix

* Extra tests

* more tests

* more tests

* codefactor

* #200

* refactor

* refactor

* tests

test/WireMock.Net.Tests/TestUtils.cs

@@ -0,0 +1,14 @@
+using System.Reflection;
+
+namespace WireMock.Net.Tests
+{
+    public static class TestUtils
+    {
+        public static T GetPrivateFieldValue<T>(this object obj, string fieldName)
+        {
+            var field = obj.GetType().GetTypeInfo().GetField(fieldName, BindingFlags.NonPublic | BindingFlags.Instance);
+
+            return (T)field.GetValue(obj);
+        }
+    }
+}