del json config & preprocess

* add keypoint benchmark data

* update benchmark-data and change default keypoint bs=8, to be same as C++ infer

* update tinypose readme

* add tinypose link in keypoint introduction, test=document_fix

* fix naive-lite-hrnet backbone

* add WiderNaive-18 model

* add --save_prediction_only support for TopDown KeyPoint Metric

* add a use case for save_prediction_only

* merge upstream

* clean code

* add batch_size in keypoint_detector

* add document for keypoint dataset preparation

* test=document_fix

* test=document_fix

* 关键点文档中json示例格式化显示，test=document_fix

* add mot keypoint unite python infer

* fix mot pose fps

add dark deploy supported, mpii deploy supported;

add config dark_hrnet_w32_384x288.yml;
test=document_fix;

* add DarkPsoe support

* modify Top-Down bbox_file str to bbox.json