Extension of QC to be better adapted to SBC/FC matrix

[Gab-D-G]

• Should add option to use the dataset mean/median as automatically-generated prior instead of having to generate a prior separately; but warn that the quality of the prior should be visually assessed
• For FC matrix QC: should offer the option to select ROIs of interest in the matrix, and generate reports for those ROIs with a voxelwise seed connectivity map generate from the ROI timecourses (for spatial specificity), then generate the same reports as SBC. The idea is that main ROIs of interest can be double checked with the QC to make sure the interpretation is sensible