Julia api

See merge request !115

still missing: input vectorvector, pairs, vectors of strings

Homology API

See merge request !114

committing this so it is kept somewhere in the history ;-)

  (e.g. when using the C++/C wrapper compiled with MSVC, together with the Mingw/GCC SDK)
- define _USE_MATH_DEFINES with MSVC

Thanks to @rboman for both fixes!

C++ wrapper for C API

See merge request !112