Event GPS location field
Events should have a standardized location field that maps to an actual location on Earth or any other place within the multiverse.
Inputting a location into this field needs to be extremely easy and low-effort, to get people to actually bother entering a proper location. Since we're an organization based at NTNU, entering rooms at NTNU must be supported. See also #210.
This field should also be exposed in the calendar feed. The field does not necessarily need to map to an actual location to be used for this purpose.
Once this field is in place, we can start displaying fancy data such as the expected weather for the event (#209), or an embedded map of the location for the event (#47).