Add new dissector for Shared Memory Communications over RDMA protocol (SMC-R)

RFC draft http://www.ietf.org/id/draft-fox-tcpm-shared-memory-rdma-05.txt
used as reference for packet dissection.

A small change was made to packet-infiniband, to add the Queue Number to the
info column.  This allows for easy indentification of session traffic for a
particular QP.

Also: infiniband: tvb_length() --> tvb_captured_length()

Bug: 10715
Change-Id: I774ceffaa5c271cb6a28ab4ed21e53cd42f2547b
Reviewed-on: https://code.wireshark.org/review/5386
Petri-Dish: Bill Meier <wmeier@newsguy.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Bill Meier <wmeier@newsguy.com>