Split up Calibration into 3 sections
Split up Calibration into 3 sections

Calibration Settings, Sectors and Filters were linked by the same
ShowHide code. This was causing them to all open simultaneously. The
code has been edited to split them up, however there appears to be a
break in the layout between Settings and sectors.

aclerc/PCWG,coillarach/PCWG,GregMJP/PCWG,lcameron05/PCWG,etraiger/PCWG,peterdougstuart/PCWG,MVAppleby/PCWG,clembou/PCWG