Add configurable timeout to SCPClient

[TAlonglong]

Default timeout to the SCPClient channel when using put is 10 seconds. The default is hardcoded in the SCPClient code https://github.com/jbardin/scp.py/blob/8d8ffd018f7f2f34dc99b413cf3f817705cc9233/scp.py#L117

This should be possible to configure in the move_it_server configure section and pass into the SCPClient

I suggest to add a scpclient_timeout_seconds as an option in the config file.

So add this in the SCPMover and handle accordingly.