(issue1620) Fix WstWriter Column Header format. - Size is always 9 for a name, fill with spaces if not. - column-bez-text is the longform if a name contains spaces it is quoted. This should enable more exotic waterlevel names which are needed for issue1020

select.abflusstafel = \
    SELECT ABFLUSSTAFEL_NR, \
           ABFLUSSTAFEL_BEZ, \
           GUELTIG_VON, \
           GUELTIG_BIS, \
           PEGELNULLPUNKT, \
           AT.BFG_ID \
    FROM ABFLUSSTAFEL AT \
    WHERE MESSSTELLE_NR LIKE :number