Add support for GZip and Deflate (#439)

* gzip - wip

* wip

* tests

* fix gzip and deflate

* CheckIfShouldKillVBCSCompiler

* DisableRequestBodyDecompressing

src/WireMock.Net/Util/BodyParserSettings.cs

@@ -0,0 +1,17 @@
+using System.IO;
+
+namespace WireMock.Util
+{
+    internal class BodyParserSettings
+    {
+        public Stream Stream { get; set; }
+
+        public string ContentType { get; set; }
+
+        public string ContentEncoding { get; set; }
+
+        public bool DecompressGZipAndDeflate { get; set; } = true;
+
+        public bool DeserializeJson { get; set; } = true;
+    }
+}