Migrate all exists method call in PythonGateway to corresponding service

Co-authored-by: Nkezhenxu94 <kezhenxu94@apache.org>

Currently, our core and side module dependent on each others. and will cause
cycle import in our codebase, especially in issue #10905, we try to refactor
to solve this problem.

This patch do the following change:

* Rename module `side` to `models`
* Move `core/base` and `core/sidebase` to dir `modules`
* Move `configuration` and `default_config.yaml` to the root of pydolphinscheduler

* when task with more than one upstreams, mapper
   TaskDefinitionMapper method queryByName will return
   more than one record, and failed the mybatis result
   type, so we have to add `limit 1` to it to
* add multiple runs of example in integrate test
* Change from subprocess.Popen to subprocess.call_check
  in integrating test which will raise an error when failed

* Remove add leading `$` from command
* Add copy button from code block
* Using `python -m pip` to install package avoid error

close: #10431

This patch fix the error release state not work when it set to
offline and submit it to Java gateway, it error because we do
not pass the attribute to Java gateway function
`createOrUpdateProcessDefinition`

close: #9779

rename them and add `python` suffix in the end
close: #9121

* [python] Add task decorator for python function

* Add decorator `@task`
* Add a tutorial about it
* Change tutorial doc and combine into traditional docs
  * Add sphinx-inline-tab for better view

* revert not need change

* Correct python function indent

* Correct integration test

Add a new method to get config from environment variables
and for now, we have three ways to get config and the
priority is `env-var > custom-config-file > built-in-config-file`.

Environment config setting does not work in CLI, because it will
confuse users when they get config value is `var-env` but value
in the configuration file is `var-in-file`, they may not find
the way how to change it

* Add documentation
* Add it to UPDATING.md

close: #8344

This patch recovers the properties `python.sign.skip=false`
when the combined profile `release,python` is used.

also close: #9433

which includes `configuration`, `run example`
`how to connect remote server`

close: #9286, #9284, #8917

Currently the size of our distribute package is up to
800MB, this patch is migrate python gateway server into
api server

The distribute package size before and after this patch is:

```sh
# before
796M   apache-dolphinscheduler-2.0.4-SNAPSHOT-bin.tar.gz

# after
647M   apache-dolphinscheduler-2.0.4-SNAPSHOT-bin.tar.gz
```

[Feature-8369][Document]Add docs building test instructions in pydolphinscheduler DEVELOP.md (#8369) (#8693)

Co-authored-by: Ncaishunfeng <534328519@qq.com>

* [python] Fix change exists pd attribute user error

* Remove attribute from class ProcessDefinition, cause it should to
  object User instead of object ProcessDefinition.
* Grant project to user if attribute user change for exists ProcessDefinition

close: #8751

* Add py.test conftest.py for package integration

* fix the API server default time-zone conf

* fix the Python server default time-zone conf

* Add new profile `python` to separate build python
  package from `release`. Now someone who does not interested
  in python api could build package without python environment
* Add auto gpg asc sign when run `mvn instal -Ppython`
* Add property to skip gpg sign `python.sign.skip`
* Set `python.sign.skip=false` sign python dist by default
Co-authored-by: Nkezhenxu94 <kezhenxu94@apache.org>

* [python] Add integrated test to python gateway server

* Build java code and create standalone server image in GA
* Add component start docker in python
* Run example to make sure it work to it

close: #8035

* Fix build docker image working directory

* Fix working directory

* Add a new commit hook to pre-commit, to auto
  remove unused imports
* Remove all unused pass statements
* Add autoflake to tox and out CI

close: #8592

* Change logging.warning to logger.warning
* Add testing for logging about task code already in process definition

close: #8258

* add `.pre-commit-config.yaml` in the pydolphinscheduler module and configured basic check rules like `isort`, `black`, `flake8`
* add some instructions in `DEVELOP.MD`
* Fix some mistake and add some docs on it
Co-authored-by: NJiajie Zhong <zhongjiajie955@hotmail.com>

* [python] Add tox for out of box test

* Add `tox` for easy and complete test
* Correct package data attribute
* Add more dirs in flake8 ignore

* Change GA from raw to tox

* Fix env setter

* Temp skip sanity

* Rm not exists job

* Add code test

* fix

* rm all need

* fix

* fix

* fix

* fix

* fix

* fix

* Migrate pip upgrede to tox setting

* Change install_commands to commands

* fix config of install command

* Add GA env to do that

* Fix env error

* Finial commit

* remove duplicate

* Change doc

* Change dependence of ci

* Change dependence of ci

* Change `yaml_parser.py` method `to_string` to magic method
  `__str__` make it more pythonic.
* Add some tests to magic method `__str__` and `__repr__`

* Add LICENSE and NOTICE to Python API
* Add new license dir `python-api-license` to keep all
  Python API's LICENSE files
* Change LICENSE in distribute package
* Add content about should add LICENSE when new dependence
  adding

* [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

This patch increase Python API unit test coverage
threshold from 85% to 90%. If coverage under 90%
will failed our the test