message: Refactor loadGPXfiles()
  Retrieve directly [path,wpoints] from getMapCoordinates[][]
diff: @@ -386,8 +386,7 @@ export class GalleryMapLightboxComponent implements OnChanges {
  // tslint:disable-next-line:prefer-for-of
  for (let i = 0; i < this.gpxFiles.length; i++) {
  const file = this.gpxFiles[i];
  - const path = await this.mapService.getMapCoordinates(file,'trkpt');
  - const wpoints = await this.mapService.getMapCoordinates(file,'wpt');
  + const [path,wpoints] = await this.mapService.getMapCoordinates(file);
  if (file !== this.gpxFiles[i]) { // check race condition
  return;
  }
  