add_mixnet_rexnet

* fix repvgg eval

* fix dp training

* fix single card train

* fix loss reduce from dict to list

* remove note

* add quick start for community

* Update quick_start_professional.md

* Update, test=document_fix

* Add the usage hint about Transformers series models, test=document_fix

* Update hyperlink, test=document_fix

* Fix to support arm7

* add find_unused_parameters param

* fix default val

* fix log when running vit in statich mode

* fix comment

add multilabel feature based develop

* support bs>1

* Support Visual DL

* Fix VDL

* Add doc of VDL, test=document_fix

* Add the en doc of VDL, test=document_fix
Co-authored-by: Nlittletomatodonkey <2120160898@bit.edu.cn>