Support the Include snippet schema feature

Author: rohitmishra209

src/core/lib/request.js

@@ -42,12 +42,11 @@ export default function Request(options) {
             queryParams = serialize(options.body);
         }
 
-
         fetch(url + '?' + queryParams, {
                 method: 'GET',
                 headers: headers
             })
-            .then(function(response) {
+            .then(function(response) {             
                 if (response.ok && response.status === 200) {
                     let data = response.json();
                     resolve(data);

src/core/modules/entry.js

@@ -190,6 +190,7 @@ export default class Entry {
      */
     includeSchema() {
         this._query['include_schema'] = true;
+        this._query['include_snippet_schema'] = true;
         return this;
     }
 
@@ -226,6 +227,7 @@ export default class Entry {
      */
     includeContentType() {
         this._query['include_content_type'] = true;
+        this._query['include_snippet_schema'] = true;
         return this;
     }
 

src/core/modules/query.js

@@ -652,7 +652,7 @@ export default class Query extends Entry {
                 query: this._query
             }
         };
-        return Utils.sendRequest(this);
+         return Utils.sendRequest(this);
     }
 
      /**