Handling of SSH Protocol Banner timeout in PyEZ

[chidanandpujar]

Handling of SSH Protocol Banner timeout in PyEZ

banner_timeout value has fixed value of 15 seconds as per paramiko, we will check if there is any option from paramik to change the default values .
              [paramiko/paramiko/transport.py at main · paramiko/paramiko (github.com)](https://github.com/paramiko/paramiko/blob/main/paramiko/transport.py#L517)
 
# how long (seconds) to wait for the SSH banner
                 self.banner_timeout = 15

[apurvaraghu]

As per the current version of Paramiko, we can pass 'banner_timeout' variable with required value while calling the connect method.

An example for the same is as below:

client = SSHClient()
client.connect('ssh.example.com', banner_timeout=200)

Totally there are 3 options available for timeout:
• banner_timeout - an optional timeout (in seconds) to wait for the SSH banner to be presented.
• timeout - an optional timeout (in seconds) for the TCP connect
• auth_timeout - an optional timeout (in seconds) to wait for an authentication response.

Link that references to these parameters in the paramiko cllient.py code:
https://github.com/paramiko/paramiko/blob/51eb55debf2ebfe56f38378005439a029a48225f/paramiko/client.py#L225-L235