Redo the sshsk_sign() stuff properly, but putting the helper in libssh.so

Add the sign client part.

switch everyone to openssl.old

use new openssh tree

use the proper libcrypto

build libnetpgp and libssh earlier.
look for libssh in the right place.

use LIBDPLIBS+= not =.

don't set LIBDPLIBS in libpam/modules/Makefile - it is not necessary
and it interferes with the compat lib build. don't use LIB_ROOT_DIR.

Build & install pam_ssh.so.0 now that libssh is available for use.

Use LIBDPLIBS to provide the list of libraries for the modules to depend
upon, because:
* it's MUCH quicker; no need to calculate the OBJDIRS of every library
we might require in every subdir.

Use LIBDPLIBS to provide the list of libraries for the modules to depend
upon, because:
* it's MUCH quicker; no need to calculate the OBJDIRS of every library
we might require in every subdir.
(make obj drops from 21s to 3s on my system.)
* it's more robust when building to a fresh DESTDIR.

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Link with libraries from the source build directory.

- NetBSD build glue
- Warning fixes
- RCSID's

- Import freebsd's version of libpam as of today (20041212).
- Did not import opie, passwdqc, tacplus. We need to decide what to do
with them.
- Imported radius and ssh, although they will not work

- Import freebsd's version of libpam as of today (20041212).
- Did not import opie, passwdqc, tacplus. We need to decide what to do
with them.
- Imported radius and ssh, although they will not work until we
import libradius and re-structure our tree to install libssh.

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