GitLab

* delete load_static_weights for detection
* master to develop for PaddleClas referencee

* fix srn for sublayer

* update for paddle2.1

cherry-pick users' pr

* Update postprocess_op.cpp

Modify code to adapt to VC.

* Remove redundant comment.

Fixed a bug it cannot adapt to VC++.

Fixed out_channels

add max_text_length to export model

add max_text_length to SRNLabelDecode

Fix multi doc

* Add polygon score param to config

Co-authored-by: littletomatodonkey <2120160898@bit.edu.cn>

Update joinus.png

add save rec res

fix hubserving

fix db post for whl

Co-authored-by: MissPenguin <lichenxia1991@163.com>
Co-authored-by: littletomatodonkey <2120160898@bit.edu.cn>

* fix hub serving for db post process

* update hub serving config method

add new db post score calculation method