Support DWPose/MMPose Format

[cleong110]

DWPose is a pretty nice/popular pose estimator, apparently based on MMPose.

Relevant code can be found here:

• https://github.com/IDEA-Research/DWPose/blob/onnx/ControlNet-v1-1-nightly/annotator/dwpose/wholebody.py
• https://github.com/IDEA-Research/DWPose/blob/onnx/ControlNet-v1-1-nightly/annotator/dwpose/util.py

Example output:

CBT-001-esl-1_Topic_God Creates Everything.pose-animation.mp4.zip

[AmitMY]

it seems to be exactly like openpose, so you could use the same pose header
or base the DWPose header based on OpenPoseHeader