AR layers

[kylecorry31]

• [ ] Add button for layers
• [ ] Modify layer visibility and settings
• [x] #2103
• [ ] Layers: Astronomy, Beacons, Paths
• [ ] Astronomy layer setting: Sun Path (None, Future, All day), Moon Path (None, Future, All day), Show Sun, Show Moon, Date (default to today), Meteor Shower Path (None, Future, All day), Show Meteor Showers
• [x] Beacon layer settings: Nearby radius
• [ ] Path layer settings: Nearby radius
• [ ] Save layer settings
• [ ] Allow temporary override of layer settings (displays to user that layers are overridden and gives them an option to exit that mode)