Cmake Build

Next we checkout the C++ version. We enable the internal test by providing -DKKMC_ENABLE_TESTS=ON and the path to Fortran directory. Currently we have to do the build step twice

git clone git@github.com:KrakowHEPSoft/KKMCee-dev.git
cd KKMCee-dev
cmake -S . -B path/to/build -DKKMC_PHOTOS_DIR=/path/to/photos/ 
                            -DKKMC_ENABLE_HEPMC3=ON
cmake --build path/to/build # This will fail
cmake --build path/to/build