Adjusted further std::map::insert operations to comply with the logic from QMap, the code once was based on.

Erased std::map entries if a new one is to be inserted, because that is what QMap::insert does. Direct change to insert_or_assign is only possible staring from C++17.

Splitted implementation and defition of mapkeys, and ensure compilation of targets using HYKOPS with C++11 to 20.

Adjusted ranges for for-loops in lofttobsplinesurface to avoid segmenation faults caused by the original design while creating almost idential surfaces

Link HYKOPS library with Boost library, corrected ranges for the loops in AssembleFactory::lofttobsplinesurface and other fixes

Resolve: Change to CMake build system

See merge request !1

Configured CMakeLists.txt s.t. HYKOPS may be found with cmake in an external project using find_package(HYKOPS)

created a working cmake setup to compile hykops and added a Doxyfile for autogenerated documentation with doxygen

Freed hykops_propeller from Qt. The C interface has not yet been converted. Not tested but compiling.

Conforming parsing and serialization interfaces for the HYKOPS framework - but not yet thoroughly tested in every detail.