* dbus/dbus-sysdeps-win.c: disabled DBusUserInfo related code

* dbus/dbus-sysdeps-win.c: disabled DBusUserInfo related code
	(_dbus_append_desired_identity,_dbus_windows_user_is_process_owner): new win32 functions as counterpart of unix related
       	(_dbus_send_credentials_socket,_dbus_read_credentials_socket): renamed from ..._unix_socket
	(_dbus_send_credentials_unix_socket): removed obsolate function
* dbus/dbus-sysdeps-win-util.c: disabled DBusGroupInfo related code
	(_dbus_verify_daemon_user,_dbus_change_to_daemon_user): new win32 functions as counterpart of unix related