added t1_2_mni registartion and t1 skull stripping back in with output fields in the anatomical workflow
added t1_2_mni registartion and t1 skull stripping back in with output fields in the anatomical workflow

shoshber/fmriprep,poldracklab/fmriprep,shoshber/fmriprep,oesteban/preprocessing-workflow,oesteban/fmriprep,poldracklab/fmriprep,oesteban/fmriprep,oesteban/fmriprep,poldracklab/preprocessing-workflow,poldracklab/fmriprep,oesteban/preprocessing-workflow,poldracklab/preprocessing-workflow,chrisfilo/fmriprep