Pick up copyright, whitespace cleanups, put UKERNA- in front of some
attributes with the same name as RFC 7055 attributes, add some
additional attributes.
Change-Id: Iad05b3c83c37185bdd18be208fd2e1878b950a0e
Reviewed-on: https://code.wireshark.org/review/21818
Reviewed-by: Guy Harris <guy@alum.mit.edu>