Py-extension-functions

- added task status : backup

What's Changed
* [task] update return type for check_task_status by Gaolious in https://github.com/Gaolious/py_extension_functions/pull/10


**Full Changelog**: https://github.com/Gaolious/py_extension_functions/compare/v0.0.7...v0.0.8

- add django templates

- update find package

To check django functions

- add django model mixins, fields, utils