Updated all configs with the [sofa] section (which is used only

if explicitly enabled during Cmake) and some new items in the
[testing] section (content of the [testing] section is optional).

M    config/config-middleVOI-lowSNR.ini
M    config/config-smallVOI-highSNR-correctSize.ini
M    config/config-smallVOI-highSNR.ini
M    config/config-smallVOI-lowSNR.ini
M    config/config-singleCell-correctSize.ini
M    config/config-middleVOI-highSNR.ini