Migrate SegmentationSink to new WeakPointer API
Migrate SegmentationSink to new WeakPointer API

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