Added datasink to save all outputs of TSNR calculation.
Added datasink to save all outputs of TSNR calculation.

poldracklab/mriqc,oesteban/mriqc,oesteban/mriqc,oesteban/mriqc,poldracklab/mriqc,poldracklab/mriqc,oesteban/mriqc,poldracklab/mriqc