* fix PP-TinyPose PrepareKeypointDataSet document test=document_fix

* fix PP-TinyPose/introduction_en.ipynb

* fix PP-TinyPose PP-Vehicle PP-HumanV2 introduction image path

* fix PP-HumanV2 PP-Vehicle Single choice bug

* add PP-TinyPose model file

* modified PP-TinyPose auto download model

* del modelcenter/PP-TinyPose/APP/output_inference/

* add PP-TinyPose PP-HumanV2 PP-Vehicle video format checks

* fix PP-HumanV2 PP-TinyPose PP-Vehicle video adaptive code

* fix PP-HumanV2 PP-Vehicle Single choice bug

* add PP-TinyPose model file

* modified PP-TinyPose auto download model

* del modelcenter/PP-TinyPose/APP/output_inference/

* add PP-TinyPose PP-HumanV2 PP-Vehicle video format checks

* test=update_icons, test=release/2.3

* test=update_icons, test=release/2.3

[ModelCenter]PaddleDetection's review(PP-YOLO, PP-YOLOv2, PP-YOLOE, PP-YOLOE+, PP-Vehicle, PP-HumanV2, PP-Picodet, PP-TinyPose) (#5606)

* PaddleDetection's review by yezj

* Update info.yaml

* Update info.yaml

* Update info.yaml

* Update info.yaml

* Update info.yaml

* Update info.yaml

* Update info.yaml

* Update info.yaml

* delete redundancy files

* delete redundancy files of pp-tinypose

* add PP-TInyPose

* add PP-TInyPose info.yaml app.yaml

* * add PP-HumanV2

* add PP-Vehicle

* PP-TInyPose PP-Vehicle PP-HumanV2 add English version

* fixed info.yaml

* Update info.yaml

* fix PP-TInyPose/info.yaml
Co-authored-by: NliuTINA0907 <65896652+liuTINA0907@users.noreply.github.com>

* add PP-TInyPose

* add PP-TInyPose info.yaml app.yaml

* * add PP-HumanV2

* add PP-Vehicle

* PP-TInyPose PP-Vehicle PP-HumanV2 add English version

* fixed info.yaml

* Update info.yaml

* fix PP-TInyPose/info.yaml
Co-authored-by: NliuTINA0907 <65896652+liuTINA0907@users.noreply.github.com>

* test = add the PP-YOLOv2 Demo to ModerCenter

* test = update the PP-YOLOv2 Demo to ModerCenter

* test = update the PP-YOLOv2 Demo to ModerCenter

* test = add the folders for related models
Co-authored-by: NYang <yangyehua@baidu.com>