OpenPosePostProcess

This is the OpenPosePostProcess model postprocessing class, which is inherited from the key point postprocessing base class (KeypointPostProcessBase).

The Init(), DeInit(), and Process() APIs in KeypointPostProcessBase are reloaded. For details, see KeypointPostProcessBase.

It also reloads the GetCurrentVersion API of PostProcessBase to obtain the version number of the current postprocessing .so file and the assignment operator "=".

In addition, it implements the std::shared_ptr<MxBase::OpenPosePostProcess> GetKeypointInstance() method to obtain the smart pointer instance of this class.