Hendaye released

A new release of the Geneva library, codenamed "Hendaye" after the starting point of the Camino del Norte (one of the major Saint James ways in northern Spain), has been released. It incorporates many changes to make Geneva compile with current versions of CMake, Boost and g++, and a port to C++20. Geneva will now be refactored with new architecture and code. If you wish to maintain the old version or help with the refactoring, do contact the authors. Note that Geneva is no longer maintained by Gemfony scientific, but is a private endeavor.