Merge branch 'feature-gromacs_converter' into 'develop'

CHANGELOG

Data/Jobs_reference_data/gromacs_reference.nc

Data/Trajectories/Gromacs/md.pdb

Data/Trajectories/Gromacs/md.xtc

Extensions/setup.py

Extensions/xtc/include/ms_stdint.h

Extensions/xtc/include/trr_header.h

Extensions/xtc/include/xdr_seek.h

Extensions/xtc/include/xdrfile.h

Extensions/xtc/include/xdrfile_trr.h

Extensions/xtc/include/xdrfile_xtc.h

Extensions/xtc/src/xdr_seek.c

Extensions/xtc/src/xdrfile.c

Extensions/xtc/src/xdrfile_trr.c

Extensions/xtc/src/xdrfile_xtc.c

Extensions/xtc/trr.pyx

Extensions/xtc/trrlib.pxd

Extensions/xtc/xdrlib.pxd

Extensions/xtc/xtc.c

Extensions/xtc/xtc.pyx