creation of the data base for the format of daily dates
def_dailyform(y,m,d,dailysep)
y = place of the year in the dates
m = place of the month in the dates
d = day of the year in the dates
dailysep = separator between the day, month and year
nothing: data are saved into the file SCI\macros\grocer\db\basets.dat
def_dailyform(1,2,3,'/') // taken from function def0_basets. Dates will have the format year/month/day. def_dailyfomr(3,2,1,'-') // Dates have here the format day-month-year.