pidl/ws: Add HEADER START/HEADER END in ws dissector

pidl/ws: Add HEADER START/HEADER END in ws dissector

Port Wireshark commit a297950

Author: Guy Harris <guy@alum.mit.edu>
Date:   Mon Jan 13 21:05:44 2014 +0000

    Add HEADER START and HEADER END, similar to CODE START and CODE END, to
    allow stuff to be put into the .h file; that way, if you put helper
    functions into the .c file, for use by dissectors other than the one
    being generated, you can put declarations for them into the .h file.

    Do some checks for mis-nesting of CODE and HEADER blocks.

    Clean up the "this is generated code" header.

    svn path=/trunk/; revision=54720

Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>