Download CamiTK develop

For the develop version, we recommend to clone the CamiTK git repository and switch to the develop branch. From the terminal:

# Clone and switch to the develop branch
git clone https://gricad-gitlab.univ-grenoble-alpes.fr/CamiTK/CamiTK.git src/CamiTK-git
git -C src/CamiTK-git checkout develop

# set this CAMITK_SOURCE_DIR (it will be useful in the next steps)
export CAMITK_SOURCE_DIR="$(pwd)/src/CamiTK-git"