message: feat(map): extend marker type with source
diff: @@ -76,6 +76,10 @@ export interface MarkerInfo<GeoPoint>
  * (i.e. has it been reviewed for accuraccy).
  */
  visible: boolean;
  + source?: {
  + name: 'hardcoded';
  + id: string;
  + };
  }
  export type OldMarkerInfo = EitherMarkerInfo<{
  