Support importing 2D Nicos data files
Loading shall be available via GUI and via Core, same as e.g. for TIFF right now.
File extension is "*.001".
Along with this, the open-file-dialog filters shall be divided in these parts:
TIFF (*.tif, *.tiff)
Nicos (*.001)
BornAgain (*.int.gz)
ALL (*.*)
Edited by m.puchner