code: BitemporalDateTime readBitemporalDate(Columns columns, String field) {
          return parseBitemporalDate(columns.valueForField(field));
      }
docs: Returns a {@link BitemporalDateTime} read from the specified {@link Columns}.
  
  @param columns the column where the data is
  @param field the name of the field to be read from {@code columns}
  @return a bitemporal date time