Add an icon over thumbnails to indicate the geotagging status.

This include : Album icon-view, Preview Thumbbar, Editor Thumbbar, LightTable Thumbbar, Import Icon-view, Import ThumbBar, Showfoto Thummbar
A new settings in digiKam-AlbumView, DigiKam-Camera, and Showfoto-Misc pages have been add to turn on/of this feature (disabled by default)
BUGS: 254131
FIXED-IN: 4.1.0