[WIP] Adding write_derivative_description and the related test#811

Draft

Remi-Gau wants to merge 11 commits intobids-standard:mainfrom

Remi-Gau:write_derivative_description

Commits on Jan 29, 2022

Merge remote-tracking branch 'bids-standard/master' into write_derivative_description
Remi-Gau
committed
fix to make tests pass
Remi-Gau
committed
handle simple raw dataset_description and let user decide where to ouput derivatives
Remi-Gau
committed