feat(io): add the Spatial Fiducials IOD read/write feature
requested to merge 1108-io-new-dicom-reader-writer-to-read-write-the-separate-file-fiducials into dev
Description
These changes add the Spatial Fiducials IOD read/write feature to the existing DICOM reader/writer.
Closes #1108 (closed)
How to test it?
Launch io_dicomtest.
Ideally, we would test with actual Spatial Fiducials DICOM files but I didn't find any, so we're on our own I guess.
Loading DICOM files without Spatial Fiducials should still work.