Transfer metadata between layers (feature request)

[haesleinhuepf]

When processing images, some users request to transfer metadata from one layer to another. For example, after deconvolving an image, you may want to keep some of the meta data and store it together with the deconvolved data.

Read more about use-cases:

• https://forum.image.sc/t/python-copy-all-metadata-from-one-multipage-tif-to-another/26597
• https://forum.image.sc/t/copy-metadata-to-another-tiff-file-with-imagej/60426
• https://forum.image.sc/t/how-to-copy-the-metadata-set-of-an-image-and-paste-it-to-a-new-one/60357
• https://forum.image.sc/t/copy-ome-metadata-from-one-channel-and-series-to-another-one-in-java/76399
• https://forum.image.sc/t/clij-copy-metadata-from-input-image-to-output-image/53336
• https://forum.image.sc/t/from-imageplus-to-pyramid-ome-tiff-metadata-whats-the-best-way/60374/3