This MR aims to add a new view, ThunarGalleryView. The view is an accessible gallery view that makes it easier to a large number of pictures in a folder. See #693
TODO
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Make basic gallery view with no file titles and packed square icons -
Add file titles on hover -
Fix unknown bug with menu bar (it is sometimes drawn under the address bar, and not on its actual location) -
Add support for more thumbnail sizes -
Add button for view in toolbar -
Add title for folders