Resolve "Implement circular symmetric beams"

.gitlab-ci.yml

CMake/config.h.in

cpp/CMakeLists.txt

cpp/circularsymmetric/CMakeLists.txt

cpp/circularsymmetric/vlabeam.cc

cpp/circularsymmetric/vlabeam.h

cpp/circularsymmetric/voltagepattern.cc

cpp/circularsymmetric/voltagepattern.h

cpp/griddedresponse/CMakeLists.txt

cpp/griddedresponse/dishgrid.cc

cpp/griddedresponse/dishgrid.h

cpp/griddedresponse/griddedresponse.h

cpp/griddedresponse/lofargrid.cc

cpp/griddedresponse/lofargrid.h

cpp/load.cc

cpp/load.h

cpp/telescope/CMakeLists.txt

cpp/telescope/atcatelescope.h

cpp/telescope/dish.cc

cpp/telescope/dish.h