Use xarray

Comment by @tmplummer on a [PR](https://github.com/IMAP-Science-Operations-Center/imap_processing/pull/3360):

```
class EsaCalibration(NamedTuple):
```

> This seems like another place where it would be advantageous to just use an xarray.Dataset where energy or esa_level is the coordinate. Then xarray will automatically handle the broadcasting when arithmetic operations are performed.