fix dll policy issue on win for Python 3.8 fixes #177
fix dll policy issue on win for Python 3.8
fixes #177

DLR-SC/tixi,DLR-SC/tixi,melven/tixi,melven/tixi,melven/tixi,DLR-SC/tixi,melven/tixi,DLR-SC/tixi,DLR-SC/tixi,melven/tixi