Support for MACSima data

[berombau]

A reader to support reading data from the Miltenyi MACSima platform. It should support the published datasets:

• [ ] Liver Cell Atlas (old data stitched and already processed)
• [x] Lung_adc_demo (stitched data they provide if you ask)
• [ ] still on the look-out for more...

It should also help users to read newer private datasets:

• [ ] from the RawData output folder with AntigenCycle and BleachCycle, similar to https://github.com/SchapiroLabor/multiplex_macsima
• [x] from a single .ome.tiff folder like Lung_adc_demo, similar to https://github.com/gustaveroussy/sopa/blob/master/sopa/io/reader/macsima.py
• [ ] from multiple .ome.tiff folder where the folder name is a different ROI/sample/condition (in-house VIB data)

Some nice building blocks that would help with this:

• [x] lazy-loading the SpatialData object by only reading the metadata, image files will only be read on demand
• [x] channel names are parsed from the OME.TIFF metadata or from a channel list metadata file or from the filename
• [x] allow subsetting to easy debugging
• [ ] load multi samples as different coordinate-systems
• [x] support channel cycle number metadata
• [x] support physical pixels size
• [ ] support metadata if the channel is a marker, repetitive DAPI or autofluorescence