Add LocalTunnel server application

[lunika]

We are using more and more Ngrok in our development workflow in many applications but Ngrok is not opensource and has some limitations in the free version counter productive for us like a 2 hours session.

We found an open-source alternative, localtunnel and the server application is also open source and can be deploy on our infrastructure: https://github.com/localtunnel/server

There is an existing image we can use and we can add Nginx reverse-proxy to complete the stack.