pidl/ws: Eliminate e_uuid_t in favor of e_guid_t

pidl/ws: Eliminate e_uuid_t in favor of e_guid_t

Port Wireshark commit 499d959

Author: Guy Harris <guy@alum.mit.edu>
Date:   Tue Mar 3 02:47:53 2015 -0800

    Eliminate e_uuid_t in favor of e_guid_t.

    That eliminates a redundant and confusing data type, and avoids issues
    with one piece of code using e_uuid_t but wanting to use routines
    expecting an e_guid_t.

    Change-Id: I95e172d46d342ab40f6254300ecbd2a0530cde60
    Reviewed-on: https://code.wireshark.org/review/7506
    Reviewed-by: Guy Harris <guy@alum.mit.edu>
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>