Added cfg2info function
Added cfg2info function

--scan2cfg now runs the cfg2info function after writing out the cfg.txt.
Info.txt is a dictionary of dictionaries for each study. Each study
dictionary contains these keys:
"Run1XXX","Run2XXX",... which hold the right XXX
"complete" which is true or false
"FieldMapPhaseXXX" and "FieldMapMagXXX" which hold the right XXX
"MPRAGE_runs" with holds a list of all the MPRAGE runs XXX

Future commits will use the info.txt structure to cut down on code.

KuperbergLab/MRI_scripts,KuperbergLab/MRI_scripts,KuperbergLab/MRI_scripts,KuperbergLab/MRI_scripts