[Fix]: fix add_config func is not called bug (#613)

* fix add_config func is not called bug
fix wandb add_config bug
add wandb log_code feature

* move log_code_name param to the last one
add log_code_name param to docstring

* add config only when there is a cfg

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

* add unit test for log_code_name param of WandbVisBackend

* Update mmengine/visualization/vis_backend.py

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

* use log_code_kwargs instead of only log_code_name
add PATH_FILTERS registry

* use log_code_kwargs instead of only log_code_name
add PATH_FILTERS registry

* fix add config unit test

* roll back to log_code_name version

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