add apiresponse.mustache

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

@@ -0,0 +1,44 @@
+using System;
+using System.Collections.Generic;
+
+namespace {{packageName}}.Client
+{
+    /// <summary>
+    /// API Response
+    /// </summary>
+    public class ApiResponse<T>
+    {
+        /// <summary>
+        /// Gets or sets the status code (HTTP status code)
+        /// </summary>
+        /// <value>The status code.</value>
+        public int StatusCode { get; private set; }
+  
+        /// <summary>
+        /// Gets or sets the HTTP headers
+        /// </summary>
+        /// <value>HTTP headers</value>
+        public IDictionary<string, string> Headers { get; private set; }
+  
+        /// <summary>
+        /// Gets or sets the data (parsed HTTP body)
+        /// </summary>
+        /// <value>The data.</value>
+        public T Data { get; private set; }
+  
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiResponse"/> class.
+        /// </summary>
+        /// <param name="statusCode">HTTP status code.</param>
+        /// <param name="message">Error message.</param>
+        /// <param name="data">Data (parsed HTTP body)</param>
+        public ApiResponse(int statusCode, IDictionary<string, string> headers, T data)
+        {
+            this.StatusCode= statusCode;
+            this.Headers = headers;
+            this.Data = data;
+        }
+  
+    }
+  
+}