add necessary apis for org directory imports

src/models/request/importDirectoryRequest.ts

@@ -0,0 +1,7 @@
+import { ImportDirectoryRequestGroup } from './importDirectoryRequestGroup';
+import { ImportDirectoryRequestUser } from './importDirectoryRequestUser';
+
+export class ImportDirectoryRequest {
+    groups: ImportDirectoryRequestGroup[] = [];
+    users: ImportDirectoryRequestUser[] = [];
+}