Request for sshrc support

[cipherswami]

trafficstars

Summary of the new feature / enhancement

In UNIX implementation has local rc file in ~/.ssh and system wide sshrc fie in /etc/ssh, which runs when ssh'ed.

Proposed technical implementation details (optional)

Please implement a similar feature for Windows OpenSSH to use PowerShell as the default SSH shell, while still not effecting other sessions like SFTP, VS Code SSH server.