updateAppList_model library

1. dialog_pp_flutter package
2. documentation
3. updateAppList_model.dart

dialog_pp_flutter package

1. Libraries
2. api_call
3. dialog_pp_flutter
4. dialog_pp_flutter_method_channel
5. dialog_pp_flutter_platform_interface
6. dialog_pp_flutter_web
7. get_controller
8. in_app_purchase
9. model_class
10. updateAppList_model