[ELMI] Add missing information elements, add support for sub-information elements.
Bug 10532

Updated with Bandwidth Profile support

Change-Id: I0f31eb6c78a5e34bcb1c286a9a10730b3b63481c
Reviewed-on: https://code.wireshark.org/review/4571
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>