Add high-quality weak pointer for itk::Objects
Add high-quality weak pointer for itk::Objects

MITK/MITK,fmilano/mitk,fmilano/mitk,fmilano/mitk,MITK/MITK,MITK/MITK,fmilano/mitk,fmilano/mitk,fmilano/mitk,fmilano/mitk,MITK/MITK,MITK/MITK,MITK/MITK