Possibility to set ports to open

[Akilan1999]

Problem

At the current implementation the user can only specify the number of TCP ports to open. Each TCP port opened is a randomly
generated 5 digit number. Certain libraries are only build for fixed ports.

Solution

Possibility for client to specify TCP ports to open on the server side. Checks on the server module to ensure that the port is not
taken. Possibility to also do port mapping from inside the container to an outside port open.