Print methods for sftrack

Print methods for sftrack

# S3 method for sftrack
print(x, n = getOption("sf_max_print", default = 6), n_col, ...)

Arguments

x	sftraj object
n	Integer of number of records to display. Defaults to 6, can be set globally by the sf option options(sf_max_print = ...)
n_col	Integer of number of columns to display + required sftrack columns (burst, geometry, time, and error). Defaults to global option default if non supplied
...	other arguments passed onto print