add the type dom_sid28 and call ad-hoc dissector

Pick up change from Samba:

    commit 87fb54b77f4b9caaf2b25635b7813e29a448aaa6
    Author: Matthieu Patou <mat@matws.net>
    Date:   Tue Oct 1 12:04:02 2013 -0700

    pidl-wireshark: add the type dom_sid28 and call ad-hoc dissector

Change-Id: Ide5041b901b5e1785b5cabd4b6320f830bbef2b8
Reviewed-on: https://code.wireshark.org/review/5108
Reviewed-by: Guy Harris <guy@alum.mit.edu>