Merge pull request CesiumGS#6468 from AnalyticalGraphicsInc/resource-…

…delete-data

Allow Resource.delete to send data

Source/Core/Resource.js

@@ -1430,6 +1430,7 @@ define([
      *
      * @param {String|Object} options A url or an object with the following properties
      * @param {String} options.url The url of the resource.
+     * @param {Object} [options.data] Data that is posted with the resource.
      * @param {Object} [options.queryParameters] An object containing query parameters that will be sent when retrieving the resource.
      * @param {Object} [options.templateValues] Key/Value pairs that are used to replace template values (eg. {x}).
      * @param {Object} [options.headers={}] Additional HTTP headers that will be sent.
@@ -1446,7 +1447,8 @@ define([
         return resource.delete({
             // Make copy of just the needed fields because headers can be passed to both the constructor and to fetch
             responseType: options.responseType,
-            overrideMimeType: options.overrideMimeType
+            overrideMimeType: options.overrideMimeType,
+            data: options.data
         });
     };
 
@@ -1570,6 +1572,7 @@ define([
      *
      * @param {Object} data Data that is posted with the resource.
      * @param {Object} [options] Object with the following properties:
+     * @param {Object} [options.data] Data that is posted with the resource.
      * @param {String} [options.responseType] The type of response.  This controls the type of item returned.
      * @param {Object} [options.headers] Additional HTTP headers to send with the request, if any.
      * @param {String} [options.overrideMimeType] Overrides the MIME type returned by the server.