Add getFeatureState

Sources/MapboxMaps/Foundation/MapboxMap.swift

@@ -534,6 +534,24 @@ extension MapboxMap {
                                          state: state)
     }
 
+    /// Get the state map of a feature within a style source.
+    ///
+    /// - Note: Updates to feature state are asynchronous, so changes made by other methods might not be immediately visible.
+    /// - Parameters:
+    ///   - sourceId: Style source identifier.
+    ///   - sourceLayerId: Style source layer identifier (for multi-layer sources such as vector sources).
+    ///   - featureId: Identifier of the feature whose state should be queried.
+    ///   - callback: Feature's state map or an empty map if the feature could not be found.
+    public func getFeatureState(sourceId: String, sourceLayerId: String? = nil, featureId: String, callback: @escaping (Result<[String: Any], Error>) -> Void) {
+        __map.getFeatureState(forSourceId: sourceId,
+                              sourceLayerId: sourceLayerId,
+                              featureId: featureId,
+                              callback: coreAPIClosureAdapter(for: callback,
+                                                              type: NSDictionary.self,
+                                                              concreteErrorType: MapError.self))
+    }
+
+
     /// Removes entries from a feature state object.
     /// Remove a specified property or all property from a feature's state object, depending on the value of `stateKey`.
     ///
@@ -543,7 +561,7 @@ extension MapboxMap {
     /// - Parameters:
     ///   - sourceId: The style source identifier
     ///   - sourceLayerId: The style source layer identifier (for multi-layer sources such as vector sources). Defaults to `nil`.
-    ///   - featureId: The feature identifier of the feature whose state should be removed
+    ///   - featureId: The feature identifier of the feature whose state should be removed.
     ///   - stateKey: The key of the property to remove. If `nil`, all feature's state object properties are removed. Defaults to `nil`.
     public func removeFeatureState(sourceId: String, sourceLayerId: String? = nil, featureId: String, stateKey: String? = nil) {
         __map.removeFeatureState(forSourceId: sourceId,