feature request: add insert & delete animation support

[Hilbert2048]

This is a wonderful package. It will be great if you can add below features:
1、support insert and delete animation api, just like AnimatedGrid
2、when inserting or deleting item, other widgets will animated to new positions (the Flutter official AnimatedGrid widget does not support such animation, which will make the whole insert/delete animation much more smoothly)

Thanks.

[teotsakalos]

Is there any progress on this?

[casvanluijtelaar]

No unfortunatly not, This package has so far been to have functional parity with "reorderableList". Wich I don't think supports insert animations. however with the need for this, I will put it on my list and spike the work.