Adding new view controller for station map
Adding map view to controller, setting up delegate
Passing stations array to station map controller during segue
Setting the mapview's initial region
Adding annotations to map view for user location and station coordinates
Adding callout accessory button to mapview pins, performing segue when callout button is tapped
Adding 'Near Me' button to map view that zooms in on current location
Zooming in on user location when map loads
Making performance tweaks related to when annotations are added to the mapview
Merge branch 'feature/stationMapScreen' into develop