idl: add offload data transfer ioctl types

idl: add offload data transfer ioctl types

For future use in handling FSCTL_OFFLOAD_READ, FSCTL_OFFLOAD_WRITE and
IOCTL_STORAGE_QUERY_PROPERTY requests new to Windows 8.

Based on preliminary data structure documentation from:
http://msdn.microsoft.com/en-us/library/windows/hardware/hh451101%28v=vs.85%29.aspx
http://msdn.microsoft.com/en-us/library/windows/hardware/hh451122%28v=vs.85%29.aspx
http://msdn.microsoft.com/en-us/library/windows/desktop/hh449428%28v=vs.85%29.aspx
http://msdn.microsoft.com/en-us/library/windows/hardware/hh451469%28v=vs.85%29.aspx

Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Lars Müller <lars@samba.org>
Autobuild-User: David Disseldorp <ddiss@samba.org>
Autobuild-Date: Thu Mar 15 18:40:11 CET 2012 on sn-devel-104