* Add support for validation rules
* Enable customizing validate max_errors through settings
* Add tests for validation rules
* Add examples for validation rules
* Allow setting validation_rules in class def
* Add tests for validation_rules inherited from parent class
* Make tests for validation rules stricter
* change Sphinx version from 1.5.3 to 7.0.0
* change sphinx-autobuild version from 0.7.1 to 2021.3.14
* add pygments-graphql-lexer to docs/requirements.txt
* Add new setting to create unique enum names
* Add specific tests for name generation
* Add schema test
* Rename settings field
* Rename setting
* Add custom function setting
* Add documentation
* Use format instead of f strings
* Update graphene_django/converter.py
Co-Authored-By: Syrus Akbary <me@syrusakbary.com>
* Fix tests
* Update docs
* Import function through import_string function
Co-authored-by: Syrus Akbary <me@syrusakbary.com>