* yaml support no constructor

* fix yaml constructor in eval & export

* fix typo

* revert config

Updated voc.py in case error occurs when xml file contains self closing node <difficult/>.

* fix label_list for mot, add warnings

* add result txt format, test=document_fix

* fix readme of mtmct, fix paddle.disable_static, test=document_fix

* fix cfg, test=document_fix

* remove paddle api

* cherry-pick cfg modelzoo readme

* cherry pick modeling engine source

* cherry-pick deploy python mot

* fix problem of s2anet while deploying

* correct problem of s2anet TestReader

* add dota default category

* update citation

* update citation

* add centernet

* add centernet

* add r50 for centernet

* support deploy for centernet

* add doc

* update pretrain

* clean code

* update r50 doc

* unify for_mot

* update code according to review

* update doc

* refine preprocess

* update doc

* a version of ppyolo for EdgeBoard

* a version of ppyolo for EdgeBoard

* decode with cache

* update

* update

* add frame_rate for mot infer video

* add doc of frame_rate for mot video infer, test=document_fix

* add gfl model and PicoDet

* add python train time eval

* add mpii infer support

* mot video decode to images

* add infer_dir for mot

* fix export and unite pose infer

* remove task in mot source

* set image_dir

* update doc

Besides removing unnecessary imports, this also fixes the missing logger module in test_architectures.py within the static directory.

* add sparsercnn

* update sparsercnn

* Add DETR

* drop return_pad_mask in PadBatch

add dark deploy supported, mpii deploy supported;