`PcSaftParameters.from_records` can not be used without binary parameters

```python
c1 = PureRecord(Identifier(), 1.0, PcSaftRecord(1, 3.0, 150.0))
c2 = PureRecord(Identifier(), 1.0, PcSaftRecord(1, 3.0, 150.0))
func = HelmholtzEnergyFunctional.pcsaft(PcSaftParameters.from_records([c1, c2]))
```
can not be run due to a missing argument. Passing an empty list results in an `unwrap` error.