Exclude dcd-molfile test from Windows
Exclude dcd-molfile test from Windows

It fails with this error message:
    dcdplugin) read_dcdheader: premature end of file

lscalfi/chemfiles,Luthaf/Chemharp,chemfiles/chemfiles,chemfiles/chemfiles,lscalfi/chemfiles,chemfiles/chemfiles,Luthaf/Chemharp,lscalfi/chemfiles,lscalfi/chemfiles,chemfiles/chemfiles,Luthaf/Chemharp