* [python] refactor yaml file parser
* Change yaml parser package to ruamel.yaml
* Refactor configuration.py module
* And file.py to write file locally
* Add more tests on it
close: #8593
* Fix UT error
* Remove pypyaml from tests
* Fix file error when param create is False
* Fix error logic
* And tests to avoid regression
* [python] Add config mechanism and cli subcommand config
* Add configuration.py mechanism for more easy change config
and move some configs to it. It mechanism including
configuration.py module and default_config.yaml file
* Add `config` for cli subcommand allow users initialize, get,
set configs
close: #8344
* Change setup.py format
* [ci] Add coverage check in CI
* Coverage add dependent
* Install pydolphinscheduler before run coverage
* Up test coverage to 87% and down threshold to 85%
* Fix code style
* Add doc about coverage
* [python] Add code style lint for GA
* Change github action name
* Auto change by black
* Fix flake8
* Fix broken link for pyds README.md
* Auto fix by black
* Separate GitHub workflows
* Add Black badge and CI locally in README.md
Jiajie Zhong