Option to disable JSON deserialization (#434)

* Option to disable JSON deserialization

* Fix build errors, add test case

* make new parameter optional

* set default for contentType as well

src/WireMock.Net/Settings/IWireMockServerSettings.cs

@@ -143,5 +143,11 @@ namespace WireMock.Settings
         /// </summary>
         /// [PublicAPI]
         bool? AllowAnyHttpStatusCodeInResponse { get; set; }
+
+        /// <summary>
+        /// Set to true to disable Json deserialization when processing requests. (default set to false).
+        /// </summary>
+        [PublicAPI]
+        bool? DisableJsonBodyParsing { get; set; }
     }
 }

src/WireMock.Net/Settings/WireMockServerSettings.cs

@@ -104,5 +104,9 @@ namespace WireMock.Settings
 
         /// <inheritdoc cref="IWireMockServerSettings.AllowAnyHttpStatusCodeInResponse"/>
         public bool? AllowAnyHttpStatusCodeInResponse { get; set; }
+
+        /// <inheritdoc cref="IWireMockServerSettings.DisableJsonBodyParsing"/>
+        [PublicAPI]
+        public bool? DisableJsonBodyParsing { get; set; }
     }
 }

src/WireMock.Net/Settings/WireMockServerSettingsParser.cs

@@ -35,7 +35,8 @@ namespace WireMock.Settings
                 RequestLogExpirationDuration = parser.GetIntValue("RequestLogExpirationDuration"),
                 AllowCSharpCodeMatcher = parser.GetBoolValue("AllowCSharpCodeMatcher"),
                 AllowBodyForAllHttpMethods = parser.GetBoolValue("AllowBodyForAllHttpMethods"),
-                AllowAnyHttpStatusCodeInResponse = parser.GetBoolValue("AllowAnyHttpStatusCodeInResponse")
+                AllowAnyHttpStatusCodeInResponse = parser.GetBoolValue("AllowAnyHttpStatusCodeInResponse"),
+                DisableJsonBodyParsing = parser.GetBoolValue("DisableJsonBodyParsing")
             };
 
             if (logger != null)