ENH: Processing summary report for fMRI pipeline

[sebastientourbier]

It should includes:

• Acquisition metadata
• Preprocessing results (including motion correction (mcflirt results), slice timing correction, fieldmap-based distorsion correction)
• Registration T1w<->BOLD overlay
• Nuisance time-series
• Pearson's correlation-based functional connectivity matrices
• (Spatio-temporal connectomes)