Add Object.entries and Object.values to polyfill package

Author: mmermerkaya

packages/polyfill/index.ts

@@ -21,10 +21,12 @@ import 'whatwg-fetch';
 // Promise
 import 'promise-polyfill/lib/polyfill';
 
-// ES6
+// ES Stable
 import 'core-js/features/array/find';
 import 'core-js/features/array/find-index';
 import 'core-js/features/object/assign';
+import 'core-js/features/object/entries';
+import 'core-js/features/object/values';
 import 'core-js/features/string/starts-with';
 import 'core-js/features/string/repeat';
 import 'core-js/features/symbol';