ScrollablePositionedList: Support for ScrollablePositionedList.separated?

[Addictorator]

Is it possible to get a ScrollablePositionedList equivalent for ListView.separated? Sure, it is possible to optionally build the separator within the itembuilder, but would be a nice feature to have, thanks!

[tarobins]

The constructor for separated has been added in google's internal code repo. It'll be pushed to github, but it'll be a bit due to thanksgiving holidays.