Add vsol ssh support

[byjosez]

Hello ktbyers,

Great job you do, thanks.

Currently I can't find a way to access this network computer which is an olt vsol, to access via ssh it has 3 authentications

The first one is the login login/password, then it asks again for the same login/password already inside the terminal to execute the enable command it asks to put the password, I will put here the sequence visually

ssh [email protected]
[email protected]'s password: **********

Hello, this is gpon olt platform (version 1.00).
Copyright 2016-2028,All Rights Reserved.


User Access Verification


Entering character mode
Escape character is '^]'.

Login: admin
Password: **********

vsol-olt.gpon> enable
Password: **********

vsol-olt.gpon# show running-config

Obviously get in using the write_channel method in each sequence, but I don't know if there is a way to improve it as other devices support it?