add oauth support to csharp

modules/swagger-codegen/src/main/resources/csharp/ApiClient.mustache

@@ -319,8 +319,7 @@ namespace {{packageName}}.Client
                 {
                     {{#authMethods}}
                     case "{{name}}":
-                        {{#isApiKey}}{{#isKeyInHeader}}headerParams["{{keyParamName}}"] = GetApiKeyWithPrefix("{{keyParamName}}");{{/isKeyInHeader}}{{#isKeyInQuery}}queryParams["{{keyParamName}}"] = GetApiKeyWithPrefix("{{keyParamName}}");{{/isKeyInQuery}}{{/isApiKey}}{{#isBasic}}headerParams["Authorization"] = "Basic " + Base64Encode(Configuration.Username + ":" + Configuration.Password);{{/isBasic}}
-                        {{#isOAuth}}//TODO support oauth{{/isOAuth}}
+                        {{#isApiKey}}{{#isKeyInHeader}}headerParams["{{keyParamName}}"] = GetApiKeyWithPrefix("{{keyParamName}}");{{/isKeyInHeader}}{{#isKeyInQuery}}queryParams["{{keyParamName}}"] = GetApiKeyWithPrefix("{{keyParamName}}");{{/isKeyInQuery}}{{/isApiKey}}{{#isBasic}}headerParams["Authorization"] = "Basic " + Base64Encode(Configuration.Username + ":" + Configuration.Password);{{/isBasic}}{{#isOAuth}}headerParams["Authorization"] = "Bearer " + Configuration.AccessToken;{{/isOAuth}}
                         break;
                     {{/authMethods}}
                     default:

modules/swagger-codegen/src/main/resources/csharp/Configuration.mustache

@@ -37,6 +37,12 @@ namespace {{packageName}}.Client
         /// <value>The password.</value>
         public static String Password { get; set; }
   
+        /// <summary>
+        /// Gets or sets the access token for OAuth2 authentication.
+        /// </summary>
+        /// <value>The access token.</value>
+        public static String AccessToken { get; set; }
+
         /// <summary>
         /// Gets or sets the API key based on the authentication name.
         /// </summary>

samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Client/ApiClient.cs

@@ -320,12 +320,10 @@ namespace IO.Swagger.Client
                     
                     case "api_key":
                         headerParams["api_key"] = GetApiKeyWithPrefix("api_key");
-                        
                         break;
                     
                     case "petstore_auth":
-                        
-                        //TODO support oauth
+                        headerParams["Authorization"] = "Bearer " + Configuration.AccessToken;
                         break;
                     
                     default:

samples/client/petstore/csharp/SwaggerClientTest/Lib/SwaggerClient/src/main/csharp/IO/Swagger/Client/Configuration.cs

@@ -37,6 +37,12 @@ namespace IO.Swagger.Client
         /// <value>The password.</value>
         public static String Password { get; set; }
   
+        /// <summary>
+        /// Gets or sets the access token for OAuth2 authentication.
+        /// </summary>
+        /// <value>The access token.</value>
+        public static String AccessToken { get; set; }
+
         /// <summary>
         /// Gets or sets the API key based on the authentication name.
         /// </summary>