Documentation fixes in README.md and HPNSSHInstallation.txt

Provided by oregonpillow @ github

Integrate OpenSSH 9.9 into the DynamicWindow branch.

No changes to the dynamic window code were required.

First pass at integrating ISSHD with HPN.

The main area that concerns me at the moment is caused by
the sshd split. NERSC_MOD creates a number of externs that will
be used by both sshd and sshd-session. So I'm concerned that there
may be issues with overwrites, bad data, etc, happening.

I need to understand more about this to really understand
if this is an issue and, if so, how to fix it. That said, it compiles and
the client runs. I'll be starting regression tests shortly.

Merge pull request rapier1#101 from rapier1/update_version_string

Push the version string

openssh-9.9p1

Update version number.

I had the wrong P number in there and I changed
the hypen in -DynWin rto _DynWin to match the RFC

Release of HPN-18.5.0 incorporating OpenSSH 9.8p1

This release brings HPN-SSH up to OpenSSH 9.8 which brings
along all of the changes in OpenSSH. This includes changes
to the hpnsshd server; specifically splitting the server into
relative barebones listener and a hpnsshd-session client that
handles the user interaction on the server side.

There are limited changes to HPN-SSH itself aside from a minor
change to the versioning to make it RFC compliant. Thanks to
Lupo Luchini for pointing this out.

Increment portable release number.

Turns out I used P2 in a prior bug fix. So this is
now 9.2p3

Merge pull request rapier1#90 from rapier1/dev_minor

Resolve CVE aka regreSSHion bug.

Increment portable release number.

Turns out I used P2 in a prior bug fix. So this is
now 9.2p3