* [Docs] Refine registry documentation (#186)

* [Docs] Refine registry documentation

* reslove comments

* minor refinement

* Refine Visualizer docs (#177)

* Refine Visualizer docs

* update

* update

* update featmap

* update docs

* update visualizer docs

* [Refactor] Refine LoggerHook (#155)

* rename global accessible and intergration get_sintance and create_instance

* move ManagerMixin to utils

* fix as docstring and seporate get_instance to get_instance and get_current_instance

* fix lint

* fix docstring, rename and move test_global_meta

* rename LogBuffer to HistoryBuffer, rename MessageHub methods, MessageHub support resume

* refine MMLogger timestamp, update unit test

* MMLogger add logger_name arguments

* Fix docstring

* Add LogProcessor and some unit test

* update unit test

* complete LogProcessor unit test

* refine LoggerHook

* solve circle import

* change default logger_name to mmengine

* refactor eta

* Fix docstring comment and unitt test

* Fix with runner

* fix docstring

fix docstring

* fix docstring

* Add by_epoch attribute to LoggerHook and fix docstring

* Please mypy and fix comment

* remove \ in MMLogger

* Fix lint

* roll back pre-commit-hook

* Fix hook unit test

* Fix comments

* remove \t in log and add docstring

* Fix as comment

* should not accept other arguments if corresponding instance has been created

* fix logging ddp file saving

* fix logging ddp file saving

* move log processor to logging

* move log processor to logging

* remove current datalaoder

* fix docstring

* fix unit test

* add learing rate in messagehub

* Support output training/validation/testing message after iterations/epochs

* fix docstring

* Fix IterBasedRunner log string

* Fix IterBasedRunner log string

* Support parse validation loss in log processor

* [Enhancement] Add PolyParamScheduler, PolyMomentum and PolyLR (#188)

* [Enhancement] Add PolyParamScheduler, PolyMomentum and PolyLR

* min_lr -> eta_min, refined docstr

Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>
Co-authored-by: Haian Huang(深度眸) <1286304229@qq.com>
Co-authored-by: Tong Gao <gaotongxiao@gmail.com>