FIX (#3262): changed OPENCV_DIR --> OpenCV_DIR to avoid CMake Config-Errors
FIX (#3262): changed OPENCV_DIR --> OpenCV_DIR to avoid CMake Config-Errors


danielknorr/MITK,lsanzdiaz/MITK-BiiG,danielknorr/MITK,MITK/MITK,lsanzdiaz/MITK-BiiG,lsanzdiaz/MITK-BiiG,MITK/MITK,NifTK/MITK,fmilano/mitk,rfloca/MITK,RabadanLab/MITKats,danielknorr/MITK,iwegner/MITK,nocnokneo/MITK,nocnokneo/MITK,rfloca/MITK,MITK/MITK,iwegner/MITK,fmilano/mitk,RabadanLab/MITKats,NifTK/MITK,rfloca/MITK,rfloca/MITK,NifTK/MITK,danielknorr/MITK,nocnokneo/MITK,fmilano/mitk,danielknorr/MITK,RabadanLab/MITKats,iwegner/MITK,NifTK/MITK,danielknorr/MITK,MITK/MITK,MITK/MITK,iwegner/MITK,fmilano/mitk,fmilano/mitk,lsanzdiaz/MITK-BiiG,fmilano/mitk,lsanzdiaz/MITK-BiiG,nocnokneo/MITK,NifTK/MITK,nocnokneo/MITK,RabadanLab/MITKats,iwegner/MITK,MITK/MITK,rfloca/MITK,nocnokneo/MITK,lsanzdiaz/MITK-BiiG,lsanzdiaz/MITK-BiiG,rfloca/MITK,NifTK/MITK,fmilano/mitk,iwegner/MITK,lsanzdiaz/MITK-BiiG,RabadanLab/MITKats,RabadanLab/MITKats,rfloca/MITK,nocnokneo/MITK,danielknorr/MITK