* Implementation of WandbLogger callback to log metrics and model checkpoints

* Added documentation on how to use WandbLogger and VisualDL

* Minor bug fix and pull from upstream

* Removed pass statement for cleanup

* Update logging_en.md

Fixed documentation

* Update trainer.py

* polish args

* fix import bugs

* save infer results to file.

* update, for mac temp file

* update func name, fix mem, fix dir

* add bytetrack yolov3 engine and deploy baseline

* fix bytetrack yolov3 configs

* fix cfgs tools

* fix tracker pred_dets

* fit pptracking jde sde infer

* rename cfgs, fix mot_sde_infer

* fix mot sde single class infer

* remove byte cfgs

* fix mtmct

* clean code

* add function wider face to coco dataset in x2coco.py

* add mtmct aic_vehicle baseline

* fix clip_bbox, add coco model filter, fix some bugs

* fix infer bugs, fix crops and mtmct vis

* fix engine tracker infer

* fix mtmct images deploy

* fix readme and cfg

* remove mtmct of cfg modeling and tracker

* fix doc cfg

* add general yolov3 for deepsort

* refine format

* fix no target infer

* fix readme and conflict

* add frame_rate for mot infer video

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

* add kitti metric

* clean kitti metric code

* fix kitticars doc

* remove kitti headtracking cfgs

* remove kitti headtracking cfgs, clean code

* fix datatype and ffmpeg, test=document_fix

* add soft link, test=document_fix

* add doc link, test=document_fix

* fix deploy image_list, test=document_fix

* 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.

* jde fairmot export and video python infer

* add config for jde and deepsort, add engine metric tools

* add mot_metrics

* fix configs engine and others

* fix configs others

* move configs

* fix ap_per_class, fix doc

* fix test_mode, seqs

* fix test_mode to metric

* fix JDE arch metric

* clean requirement

* add to requirement

* fix sync_bn in cpu

* update doc on develop, test=document_fix

* update dependency of ppdet and paddle, test=document_fix

* update docs, test=document_fix

* fix some docs error

* Add S2ANet model for Oriented Object Detection.

* fix warning

* add Distill model
* add distill+prune

* update files

* update for ci-travis