a more convenient way to specify the output file
option 'temporalia-structured' - put preprocessed psalms in subdirectories of the output directory

to avoid name clashes when the same psalm appears in more hours of the same project -
exactly this happenned here with psalm 121, tone VIII.G -
in one hour it was with notated initium, in another one without it ... mess
generated psalm texts+initia in subdirectories to avoid name-clashes
forgotten Nunc dimittis ant. for the Christmas time