Fixes #607

The concern I had about reverse/sort order is that it does matter, but
we only apply a post-sort reverse in the UI via the reverse action.

We do however not have that plumbed up properly in IrisGrid (we define
pre-sort, but don't use it and don't properly apply the reverse pre-sort
if it's specified). But it works for what we want in ui.table

```py
from deephaven import ui
from deephaven.plot import express as dx

_stocks = dx.data.stocks()

stocks_reversed = ui.table(
    _stocks,
    reverse=True
)
```