feat: update index.js files

Author: christyjacob4

templates/node/index.js.twig

@@ -1,5 +1,8 @@
 const Client = require('./lib/client.js');
 const Query = require('./lib/query.js');
+const Permission = require('./lib/permission.js');
+const Role = require('./lib/role.js');
+const ID = require('./lib/id.js');
 const InputFile = require('./lib/inputFile.js');
 const {{spec.title | caseUcfirst}}Exception = require('./lib/exception.js');
 {% for service in spec.services %}
@@ -9,6 +12,9 @@ const {{service.name | caseUcfirst}} = require('./lib/services/{{service.name |
 module.exports = {
     Client,
     Query,
+    Permission,
+    Role,
+    ID,
     InputFile,
     {{spec.title | caseUcfirst}}Exception,
 {% for service in spec.services %}