int searchDepth() {
    return Paths.get(tileScheme).getNameCount() +
      StringUtils.countMatches(tileScheme, X_SAFE_TEMPLATE) +
      StringUtils.countMatches(tileScheme, Y_SAFE_TEMPLATE);
  }
@param tileScheme the tile scheme to use e.g. {z}/{x}/{y}.pbf
@param basePath   the base path to append the generated relative tile path to
planetiler-core/src/main/java/com/onthegomap/planetiler/files/TileSchemeEncoding.java