Undo/redo functionality - what would be the best way to implement it on top of pure-store?

[mindreframer]

Hey @gunn,

pure-store looks quite good for a small wrapper on top of immer. Did you ever think about having undo/redo baked in into it?

I have implemented a small class, that is basically a copy of PureStore with undo/redo included into it, would you be interested in a contribution?

Cheers Roman