Switch between both intrinsic calibration models

CMakeLists.txt

demo/00_files/00_empty.pet

demo/01_calibration/01_intrinsic.pet

demo/01_calibration/02_extrinsic.pet

demo/01_calibration/03_calibrated_with_video.pet

demo/02_recognition/04_recognition.pet

demo/03_tracking/05_tracking.pet

demo/03_tracking/06_tracking_with_trajectories.pet

demo/04_correcting/07_corrected.pet

src/calibration/autoCalib.cpp

src/calibration/autoCalib.h

src/calibration/extrinsicParameters.h

src/calibration/intrinsicCameraParams.h

src/petrack.cpp

src/ui/main-windows/control.cpp

src/ui/main-windows/intrinsicBox.cpp

src/ui/main-windows/intrinsicBox.h

src/util/helper.cpp

src/util/helper.h

tests/regression_test/data/00_empty.pet