v0.3.9 Added ChemicalFun library
Added ChemicalFun library (#31) * Moved implementation to ChemicalFun * chemicalfun to environment file * fix link to chemicalfun * fix forward declaration * fix for MSVC build * disabled build on mingw, issue with linking to chemicalfun which is compiled with MSVC * v0.3.9 Co-authored-by: svetad <sv.dmytr@gmail.com> Co-authored-by: G. Dan Miron <dan.miron@psi.com>