Create opensuse-13.1-passwd_fix-with_hash-method-expect

This solve the damn incompatibly with sha512 passwd salts 
on opensuse 12.1 and up and   as well sles10 / 11 / 12.
The new --hash_method=expect 
 use expect with passwd chat script that been searched for at /etc/xen-tools/expect.
 expected Filename syntax <distribution>-passwd.exp.  File must have 755 .

 This require perl  IPC::Cmd and File::Copy to be installed.

 Without this bug-workarround-fix , the rootpasswd setup on opensuse 13.x failed all the time ,
 no root login after os deployed .