strided tiles (RFC)

[xalexalex]

Simply a request for comments.

In my experience I often find strided inference (i.e. overlapping tiles) to be more informative than inference on a grid of non-overlapping tiles, like WSInfer and its qupath extension currently do. This could be not-too-hard to implement in the wsinfer window.

I don't know if this requires changes on the WSInfer backend (I think not), however I have no idea how QuPath handles overlapping detections.