* make PlotDataItem aware of mapped data
* inf suppression, metadata storage and refactor of data structures
* cleanup, test, and documentation pass
* re-added prepareForPaint, added PlotDataset to sphinx index
* strip more print statements
* indicate (internal) PlotDataset documentation as orphaned to avoid sphinx error
* Do not export PlotDataset
* replacement example
* example comments
To reduce complexity, and make it easier to add more images and tests,
the images in the `test-data` repository should be merged with the main
repository. Furthermore, we can remove a lot of the subprocess work in
the image_testing.py file, as we no longer need to have it interact with
git.
The images are not the same. Images were regenerated with Qt6, and now
have proper big and little endian handling thanks to @pijyoi
Second commit is a slightly modified variant of
2e135ab282d6007b34a3854921be54d0e9efb241 authored by @pijyoi
it is to convert qimages to RGBA8888 for testing. Image
files were regenerated images for the big/little handling
Fixed issue with bogus test from test_NonUniformImage and generated a
new image
