Keyval from CSV support choice of Value separator

[will-moore]

Currently, if you have a value that contains ; then the value is split on this token and multiple Key:Value pairs are created from the same Key:

omero-scripts/omero/annotation_scripts/KeyVal_from_csv.py

Line 275 in d3fb626

vals = row[i].strip().split(';')

However, I wanted to use this script with a csv I downloaded from
https://zenodo.org/record/7308444/files/Davis%20lab%20200%20YFP%20trap%20expression.csv?download=1
which works with images from https://zenodo.org/record/7308444/files/Figures.zip?download=1
(paper at https://rupress.org/jcb/article/222/6/e202205129/214092/Systematic-analysis-of-YFP-traps-reveals-common)

That csv uses commas to separate multiplr values, e.g. "synapse, cytoplasm, plasma membrane".
I manually changed the script to split on ", " and this worked great, but it would be nice to have the option to choose this separator:

cc @Tom-TBT since I think your changes at https://github.com/German-BioImaging/omero-scripts/tree/xtnd_support_kvpairs remove this support for multiple Values?

[Tom-TBT]

I removed it because I considered it an "unexpected feature". Happens that there are , in a value, and I don't want the regularuser to find his values splitted.

I consider it to be an "advanced feature", so I can reintroduce it as a string parameter (can be one or more character). If left empty, no splitting is done

[will-moore]

Sounds good, thanks! 👍