Add correct search directory depending on external or internal OpenCV build
Add correct search directory depending on external or internal OpenCV build

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