Full replacement of QGraphicsView with Image_Analyzer

mainwindow is much cleaner now
Fixed FitToWindow, zoomIn/Out, and factor spin box interaction
More fixes to scale factor, zoom, and fit relations
Exif GPS tag handling

Viewer will output all exif tag data to stdout and display the latitude and longitude
in the image information box.
Handle unknown exif tags

Also added ability to avoid stdout dump of exif
Image info now displays GPS data, rational and decimal