Adding colReorder support

[statquant]

Hello, would you consider adding the colReorder extension support ? It's done in DT (see here for JS) I personally find it very useful.

In any case thanks for the great package !

[glin]

Hi, there will very likely be a way to programmatically reorder or customize the visible columns in a table in the future (see https://github.com/glin/reactable/issues/246, #68, #172), so something similar to the colReorder extension may be possible. I have no clue about drag-and-drop reordering though, but will probably look into how feasible that is after programmatic column reordering is supported.