Is there a way to export OpenTURNS Intervals to Samples or numpy arrays? I figure that since Intervals have 2 boundaries in every dimension, they could in theory be turned to Samples of size 2 (with the dimension staying the same).

Let us consider an example.

```
import openturns as ot
ot.Interval(0.6, 1.2)
```

Is there a way to convert `ot.Interval(0.6, 1.2)`

into `ot.Sample([[0.6], [1.2]])`

?