CZI: Auto-stitch scaling

[dgault]

Another auto-stitching issue has been reported on forum thread https://forum.image.sc/t/pb-when-i-open-czi-stitching-image/87585/2

A sample image was provided and is available at inbox/imagesc-87585 and the issue can be reproduced using Bio-Formats 7.0.1 with the CZI auto-stitching option enabled.

In this particular case the user was able to save a stitched image with Zen 3.4 and that opens as expected, but when saved with Zen 3.8 the image appears "distorted" with the stitching option enabled. In QuPath zooming in to the highest resolution level produced a normal looking image, similarly cropping regions of the highest resolution also seemed to return correct looking pixel data. When the stitching option is disabled the individual tiles appear to be correct and display as expected.

Originally posted by @dgault in #4102 (comment)

Additional sample files have been provided that are now included in inbox/imagesc-87585

[dgault]

Closing as resolved by #4138