Add lastHeading property to StaticLocationManager.

Author: scottrhoyt

Sources/MapLibreSwiftUI/StaticLocationManager.swift

@@ -8,7 +8,7 @@ import MapLibre
 /// doing some processing of raw location data (ex: determining whether to snap locations to a road) and selectively
 /// passing the updates on to the map view.
 ///
-/// You can provide a new location by setting the ``lastLocation`` property.
+/// You can provide updates by setting the ``lastLocation`` or ``lastHeading`` properties.
 ///
 /// While this class is required to implement authorization status per the underlying protocol,
 /// it does not ever actually check whether you have access to Core Location services.
@@ -29,6 +29,13 @@ public final class StaticLocationManager: NSObject, @unchecked Sendable {
             delegate?.locationManager(self, didUpdate: [lastLocation])
         }
     }
+    
+    public var lastHeading: CLHeading? {
+        didSet {
+            guard let heading = lastHeading else { return }
+            delegate?.locationManager(self, didUpdate: heading)
+        }
+    }
 
     public init(initialLocation: CLLocation) {
         lastLocation = initialLocation