Bookmarks: Show when the bookmark was created #6021
Description
Context: Some users put bookmarks when they take a picture related to that bookmark but will not have time or bandwidth to upload it until much later. Knowing when a bookmark was created would allow the user to locate the picture rather efficiently.
Solution: Store bookmark creation date, and show it in the bookmarks list.
The dates can probably be stored in the same table as the bookmarks.
For all types of bookmarks, for coherence.
