Upload PAM50 registered labels from Yehuda Warszawer

[mguaypaq]

These are the PAM50 registered labels supplied by @yw7 in #155.

I split the upload into two commits:

1. Some of the files are completely new, so there's no conflict.
2. Some of the files would overwrite existing files, by Etienne Bergeron, @valosekj, @NathanMolinier, Olivier Morinlupien, Paul Bautin, @sandrinebedard, Yassine El Bouchaibi. Which ones do we want to keep?

And some questions for Yehuda:

• The zip file contained a text file called derivatives/errors.txt, which contains the single line of text, sub-pavia04_T1w_PAM50_seg.nii.gz. What does this mean?
• It seems like there are a lot of .nii.gz files without a corresponding JSON sidecar.
• Some of the contributed files have a JSON sidecar saying they're from Charley Gros, why is that?

[sandrinebedard]

This PR refractors all the naming in the data-multi-subject dataset:

#159

I am just missing updtaing and tested the related scripts, maybe we should address it before this PR, and afterwards we can update all the naming convention to be in sync

[mguaypaq]

I'm happy to wait until #159 is merged before tackling this upload. I mainly wanted to put it up on github as a PR as quickly as possible.

[yw7]

• The zip file contained a text file called derivatives/errors.txt, which contains the single line of text, sub-pavia04_T1w_PAM50_seg.nii.gz. What does this mean?

This is file in which the registered segmentation from PAM50 was wrong:

• It seems like there are a lot of .nii.gz files without a corresponding JSON sidecar.
• Some of the contributed files have a JSON sidecar saying they're from Charley Gros, why is that?

I've created the missing _PAM50_seg jsons sidecars here: data-multi-subject_PAM50_seg_sidecars_jsons.zip

Regardingthe _seg files actually only the ones with "Author": "Yehuda Warszawer" are new (when double checked, I notice I included also the original unchenged files with the original sidecars json ) Will it help If Ill recreate zip file containing only the new files?