Expose batchGeocode(…) to ObjC

Author: n8chur

MapboxGeocoder/MBGeocoder.swift

@@ -207,6 +207,7 @@ open class Geocoder: NSObject {
      - returns: The data task used to perform the HTTP request. If, while waiting for the completion handler to execute, you no longer want the resulting placemarks, cancel this task.
      */
     @discardableResult
+    @objc(batchGeocodeWithOptions:completionHandler:)
     open func batchGeocode<T: GeocodeOptions>(_ options: T, completionHandler: @escaping BatchCompletionHandler) -> URLSessionDataTask where T: BatchGeocodeOptions {
         let url = urlForGeocoding(options)