Add Path To Items

For Yii\bootstrap\nav
When menu nav point to CRUD, sure we should point url to a action.. for example : employee/index, but when we to action create employee/create.. the menu not active.. 

```
 * echo Nav::widget([
 *     'items' => [
 *         [
 *             'label' => 'Employee',
 *             'url' => ['anyurl/employee/index'],
 *             'path' => 'anyurl/employee',
 *             
 *         ],
```