[Enhancement] IO Buffer

Hello, is it possible to implement natively io write ?

For the moment i use this workaround, but maybe there is a better way ?

```python
import pandas, typing
from datatable import Frame

def to_jay(df: pandas.DataFrame, object_: object, *args: typing.Any, **kwargs: typing.Any) -> None:
if isinstance(object_, str):
Frame(df).to_jay(object_, *args, **kwargs)
else:
object_.write(Frame(df).to_jay(None, *args, **kwargs))
```

And maybe also implement storage_options parameter pandas-like ?

Br
Nick