Packet-generator does not support TCP options.
Along with its support, a formatting function has been added.
Further work will be needed to update header formatting functions
to take into account TCP connection options. For now, TCP options
are taken on a per-packet basis.
Type: improvement
Change-Id: Id800887853c4941d893be353ce6d8624ed8bbc5d
Signed-off-by: Maxime Peim <mpeim@cisco.com>