Expose ContentHeaders on ApiResponse, to access ContentDisposition for example with file downloads.

Author: EraYaN

modules/openapi-generator/src/main/resources/csharp/libraries/generichost/ApiResponse`1.mustache

@@ -49,6 +49,11 @@ namespace {{packageName}}.{{clientPackage}}
         /// </summary>
         System.Net.Http.Headers.HttpResponseHeaders Headers { get; }
 
+        /// <summary>
+        /// The headers contained in the api response related to the content
+        /// </summary>
+        System.Net.Http.Headers.HttpContentHeaders ContentHeaders { get; }
+
         /// <summary>
         /// The path used when making the request.
         /// </summary>
@@ -106,6 +111,11 @@ namespace {{packageName}}.{{clientPackage}}
         /// </summary>
         public System.Net.Http.Headers.HttpResponseHeaders Headers { get; }
 
+        /// <summary>
+        /// The headers contained in the api response related to the content
+        /// </summary>
+        public System.Net.Http.Headers.HttpContentHeaders ContentHeaders { get; }
+
         /// <summary>
         /// The DateTime when the request was retrieved.
         /// </summary>
@@ -144,6 +154,7 @@ namespace {{packageName}}.{{clientPackage}}
         {
             StatusCode = httpResponseMessage.StatusCode;
             Headers = httpResponseMessage.Headers;
+            ContentHeaders = httpResponseMessage.Content.Headers;
             IsSuccessStatusCode = httpResponseMessage.IsSuccessStatusCode;
             ReasonPhrase = httpResponseMessage.ReasonPhrase;
             RawContent = rawContent;
@@ -167,6 +178,7 @@ namespace {{packageName}}.{{clientPackage}}
         {
             StatusCode = httpResponseMessage.StatusCode;
             Headers = httpResponseMessage.Headers;
+            ContentHeaders = httpResponseMessage.Content.Headers;
             IsSuccessStatusCode = httpResponseMessage.IsSuccessStatusCode;
             ReasonPhrase = httpResponseMessage.ReasonPhrase;
             ContentStream = contentStream;
@@ -178,6 +190,7 @@ namespace {{packageName}}.{{clientPackage}}
             OnCreated(httpRequestMessage, httpResponseMessage);
         }
 
+
         partial void OnCreated(global::System.Net.Http.HttpRequestMessage httpRequestMessage, System.Net.Http.HttpResponseMessage httpResponseMessage);
     }
     {{#x-http-statuses-with-return}}