code: public static List<ColumnMetaData> buildColumns(final String colsAsCsv) {
          final List<ColumnMetaData> listCol = new ArrayList<>();
          buildColumns(listCol, colsAsCsv);
          return listCol;
      }
docs: Create a new list of ColumnMetaData based on a CSV list of column titles.
  @param colsAsCsv
  @return new list