Resnet50PostProcess

This is the Resnet50PostProcess model post-processing class, which is inherited from the classification post-processing base class (ClassPostProcessBase).

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

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::Resnet50PostProcess> GetClassInstance() method to obtain the smart pointer instance of this class.