[Feature Request] Offer `-random` option on the CLI

[jordan-ivpn]

Feature request

Description

ivpn connect -any US always connects to us-tx because that is the first server in the servers.json file.

ivpn connect -p ovpn -any US always connects to us-ca because that is the first server in the OpenVPN section of the servers.json file.

Adding a -random CLI option offers a way to randomize the -any option for countries with multiple locations, like US, UK, and Canada.

Describe alternatives you've considered

Scripting a custom wrapper for the IVPN App to select a random server is currently the only option to achieve this behaviour.