* [Feature] Add BaseInferencer (#773)

* Update BaseInferencer

* Fix ci

* Fix CI and rename iferencer to infer

* Fix CI

* Add renamed file

* Add test file

* Adjust interface sequence

* refine preprocess

* Update unit test

Update unit test

* Update unit test

* Fix unit test

* Fix as comment

* Minor refine

* Fix docstring and support load image from different backend

* Support load collate_fn from downstream repos, refine dispatch

* Minor refine

* Fix lint

* refine grammar

* Remove FileClient

* Refine docstring

* add rich

* Add list_models

* Add list_models

* Remove backend args

* Minor refine

* Fix typos in docs and type hints (#787)

* [Fix] Add _inputs_to_list (#795)

* Add preprocess inputs

* Add type hint

* update api/infer in index.rst

* rename preprocess_inputs to _inputs_to_list

* Fix doc format

* Update infer.py

Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* [Fix] Fix alias type (#801)

* [Enhance] Support loading model config from checkpoint (#864)

* first commit

* [Enhance] Support build model from weight

* minor refine

* Fix type hint

* refine comments

* Update docstring

* refine as comment

* Add  method

* Refine docstring

* Fix as comment

* refine comments

* Refine warning message

* Fix unit test and refine comments

* add infer.md

* minor refine

* minor refine

* minor refine

* Apply suggestions from code review

Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* Fix conflicts and minor refine

* minor refine

* Fix as comment

Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>
Co-authored-by: Tong Gao <gaotongxiao@gmail.com>