Create a randomize

[Joentje]

Thanks to @brandomr
Also, for some tasks, it may be beneficial to periodically rotate the VPN address. This could be managed by the container with some randomize flag, or it can be managed by an external process. This PR allows the user to control this connection criteria through an external process.

As an example, if you are connected to us1000 for 10 times with a good load (<75). Make it possible to switch after x times.

Can be the case the API will provide the same server. Need to check.