Bug #58547 for HTML-CalendarMonthSimple: Add Days_in_Month method

Please add this method so that users do not have to bring Date::Calc into their name space to process urls and the like. =head2 Days_in_Month This function returns the number of days on the current calendar. foreach my $day (1 .. $cal->Days_in_Month) { $cal->setdatehref($day, &make_url($cal->year, $cal->month, $day)); } =cut sub Days_in_Month { my $self=shift; return Date::Calc::Days_in_Month($self->year, $self->month); }