Adds a set of attributes, typically "Header.Meta" and "Col.Meta",
to a data.frame, tibble, soma_adat or similar tabular object.
Existing attributes data are not over-written.
Typically untouched are:
namesclassrow.names
Value
A data frame object corresponding to data but with the
attributes of new.atts grafted on to it.
Existing attribute names are not over-written.
