[IDEA] Add Proxy Option Within File Reader

[RunnenLate]

Is your feature request related to a problem? Please describe.
Within the File Reader it would be nice to have the option to use a proxy the same way the HTTP Sender can use a proxy.

Describe your use case
Seems like like the functionality already exists within the JSCH library but using session.setProxy(new ProxyHTTP(host, port)); but just needs to be implemented within the File Reader.

var session = jsch.getSession('username', 'host', 'port');
var config = new java.util.Properties();
session.setConfig("PreferredAuthentications", "password");
config.put("StrictHostKeyChecking", "no");
session.setConfig(config)
session.setProxy(new ProxyHTTP('example.com, 443));
session.connect();
var channel = session.openChannel('sftp'); 

Having it available within the GUI like the HTTP Sender would be nice.