Print functions for calendars
Usage
# S3 method for class 'JD3_FIXEDDAY'
print(x, ...)
# S3 method for class 'JD3_FIXEDWEEKDAY'
print(x, ...)
# S3 method for class 'JD3_EASTERDAY'
print(x, ...)
# S3 method for class 'JD3_SPECIALDAY'
print(x, ...)
# S3 method for class 'JD3_SINGLEDAY'
print(x, ...)
# S3 method for class 'JD3_CALENDAR'
print(x, ...)