make D.feature([symbol], [Feature('close')], disk_cache=1) work correctly

dump_fix data that not in calendar_list, throw error:
```
NaT is not in list
```

* add missing parameters to doc string in order_generate

* fix some typos in doc strings

* reformat base on code style standard

* Update qlib/backtest/__init__.py

* Update examples/run_all_model.py

* Update examples/run_all_model.py

Co-authored-by: you-n-g <you-n-g@users.noreply.github.com>

* fix position access error

position is s sub attribute of _value
error since commit(id:89972f6c6f9fa629b4f74093d4ba1e93c9f7a5e5)

* lint with blank

* Don't disable existing logger when initializing qlib.

* Add comma in the end of the config line.

* Add comment to the added config.

Co-authored-by: Jinge Wang <jingewang@microsoft.com>

* Refine several todos

* CI issues

* Remove Dropna limitation of `quote_df` in Exchange  (microsoft#1334)

* Remove Dropna limitation of `quote_df` of Exchange

* Impreove docstring

* Fix type error when expression is specified (microsoft#1335)

* Refine fill_missing_data()

* Remove several TODO comments

* Add back env for interpreters

* Change Literal import

* Resolve PR comments

* Move  to SAOEState

* Add Trainer.get_policy_state_dict()

* Mypy issue

Co-authored-by: you-n-g <you-n-g@users.noreply.github.com>

* Add docs for qlib.rl

* Update docs for qlib.rl

* Add homepage introduct to RL framework

* Update index Link

* Fix Icon

* typo

* Update catelog

* Update docs for qlib.rl

* Update docs for qlib.rl

* Update figure

* Update docs for qlib.rl

* Update setup.py

* FIx setup.py

* Update docs and fix some typos

* Fix the reference to RL docs

* Update framework.svg

* Update framework.svg

* Update framework.svg

* Update docs for qlibrl.

* Update docs for qlibrl.

* Update docs for Qlibrl.

* Update docs for qlibrl.

* Update docs for qlibrl.

* Update docs for qlibrl.

* Add new framework

* Update jpg

* Update framework.svg

* Update framework.svg

* Update Qlib framework and description

* Update grammar

* Update README.md

* Update README.md

* Update docs/component/rl.rst

Co-authored-by: you-n-g <you-n-g@users.noreply.github.com>

* Update docs/component/rl.rst

Co-authored-by: you-n-g <you-n-g@users.noreply.github.com>

* Update docs for qlib.rl

* Change theme for docs.

* Update docs for qlib.rl

* Update docs for qlib.rl

* Update docs for qlib.rl

* Update docs for qlib.rl.

* Update docs for qlib.rl

* Update docs for qlib.rl

* Update docs for qlib.rl

Co-authored-by: Young <afe.young@gmail.com>
Co-authored-by: you-n-g <you-n-g@users.noreply.github.com>

…ed up NN training (microsoft#1342)

* update TSDataSampler

* reformat code with black

* use pre-commit to reformat the code

* Add documents

* More docstring

* More Safety

Co-authored-by: Young <afe.young@gmail.com>

…rosoft#1294)

* bug fix: 1) 100 should be used to scale down percentileofscore return to 0-1, not length of array; 2) for (linear) weighted MA(n), weight should be n, n-1, ..., 1 instead of n-1, ..., 0

* use native pandas fucntion for rank

* remove useless import

* require pandas 1.4+

* rank for py37+pandas 1.3.5 compatibility

* lint improvement

* lint black fix

* use hasattr instead of version to check whether rolling.rank is implemented

…rosoft#1349)

* Fix docs/advanced/alpha.rst

* Fix docs/reference/api.rst

* Fix docs/component/strategy.rst

* Fix docs/start/integration.rst

* Fix docs/component/report.rst

* Fix docs/component/data.rst

* Fix docs/component/rl/framework.rst

* Fix docs/introduction/quick.rst

* Fix docs/advanced/task_management.rst

* Fix CHANGES.rst

* Fix docs/developer/code_standard_and_dev_guide.rst

* Fix docs/hidden/client.rst

* Fix docs/component/online.rst

* Fix docs/start/getdata.rst

* Add docs/hidden to exclude patterns

* Add docs/developer/code_standard_and_dev_guide.rst to index.rst

* Change docs/developer/code_standard_and_dev_guide.rst place in index.rst