Create workflow to deface all the anat files in a dataset

[marcobarilari]

You think / need this code to do anonymise my BIDS data.

That means that we can improve the code or the documentation.

Tell us more about it below.

Systematic defacing should be handled by other tools like bidsonym: https://github.com/PeerHerholz/BIDSonym

Originally posted by @Remi-Gau in cpp-lln-lab/bidspm#176 (comment)

[Remi-Gau]

Actually bidsonym can fail sometimes: it wont easily run on a datalad dataset if some of the data is not present (is only on a remote sibling).

So I will add a bit of code deface things in with SPM