ResizeSensor - Make current dimensions readable

[movedoa]

It would be great if there was a way to read the current dimensions of the resize sensor. (I guess it should be known?)

At the moment i need to read width and height again in the event, which costs time.

[marcj]

Sure, please provide a PR. Should be a easy fix 👍

[movedoa]

Will you merge #208 any time soon? I already use this version since it just works better (at least for me)
I would base my pr on that

[marcj]

Has been added in #213