[task] Clients should load server ip from an external file

[francy51]

Client should not need to be rebuilt if the server ip changes etc. The server list can be built from a "serverinfo.config" file inside the same directory as the client.exe fairly easily.

This may apply to the server as well just by proxy (no need to use two different methods if we don't need to)

This will help significantly during testing as it will allow us to distribute test clients and use them on different servers even if the ip is dynamic.