r995: - renamed many of our crypto routines to use the industry standard

r995: - renamed many of our crypto routines to use the industry standard
  names rather than our crazy naming scheme. So DES is now called
  des_crypt() rather than smbhash()

- added the code from the solution of the ADS crypto challenge that
  allows Samba to correctly handle a 128 bit session key in all of the
  netr_ServerAuthenticateX() varients. A huge thanks to Luke Howard
  from PADL for solving this one!

- restructured the server side rpc authentication to allow for other
  than NTLMSSP sign and seal. This commit just adds the structure, the
  next commit will add schannel server side support.

- added 128 bit session key support to our client side code, and
  testing against w2k3 with smbtorture. Works well.
(This used to be commit 729b2f41c924a0b435d44a14209e6dacc2304cee)