[ENHANCEMENT] Easier way to add commands

[Devcom439]

There should be an easier way of adding commands to either the server menu or the interactive menu. I'm testing this project and I wanted to add a shutdown feature like in cmd. Yet when I looked at all the places where I have to change and add things, it gets too complicated for me. There is just too much work involved for 'just' adding a new command. If you still want to work on this project, I would really appreciate it!