[Feature]: DataTable sort with groupBy

[hughess]

Description

Ability to sort grouped data table by specified column(s).

What problem would this solve?

Currently groups are sorted alphabetically. This would let you choose a sort column and order

How should it work?

Could be a sortBy prop or could respect the order received in the data passed to the table

[hughess]

Thinking this will be sortBy which accepts a column, and sortAsc which accepts true/false.

Default sort direction will be descending (sortAsc=false) - I think most common sort cases are for numeric and you often want to see biggest first. Interested if anyone disagrees with this.

For groups (using groupBy), the group subtotal will be used to sort the groups

[hughess]

#2590

[hughess]

Closed by #2590