Sky map

[kylecorry31]

trafficstars

Like the radar compass, but for the sky (both night and day).

See #1809 for details on what stars/planets to show.

Add a seekbar to change the time of day (from sunset the day before to sunrise the next day), and a calendar to change the date

Show path of sun/moon on the map (this will essentially be a 2D view of the AR tool's astronomy layer)