[add] first draft of color calibration tab (not functional)
Merge branch 'colortrack' of https://github.com/jlfranco/gts into colortrack
[fix] ColorCalibration widget aligment
[fix] ColorCalibration widget now compiles
[add] separate function for reading file (want to recycle for color part

some other dummy functions, all WIP.
)
[add] switch image grid content metric/color
Merge branch 'colortrack' of https://github.com/jlfranco/gts into colortrack
[add] layout for hue right/left setup