* [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
* Add basic cli mechanism with Click, for now just including
one single subcommand `version`
* Add general and easy test class in tests/testing/cli, and
test to version
* Add sphinx-click to general cli docs basic on click
* [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
* Add CI for python API
* Fix task assign without process definition
* Fix ci
* Add header
* Add build badge for pydolphinscheduler
* Add content to README.md
* Remove unnecessary blank line
Jiajie Zhong