Add support for multiple coordinates per location, for different time spans, to allow curators of the system to accurately represent locations that moved over time.
[ ] Add support to add multiple coordinates with times spans in location management dialog
[ ] Support automatic display of multiple coordinates on map for single location
[ ] Support for filtering pictures behind coordinates by time range in picture info
Add support for multiple coordinates per location, for different time spans, to allow curators of the system to accurately represent locations that moved over time.