Implement initial level

[lihop]

This level is going to need some design, but there are a few concepts systems that it should ranked from most to least important:

1. DialogueTerminal system. This is how we communicate with the player, so it is pretty important for teaching them things and introducing goals.
2. Directory system. The directory system is fundamental to the game. Aspects of the directory system:

• Each room is a directory (this is important).
• Doors and "cd".
• Directory permissions rwx
• Directory owner and groups.

3. Sudo system. By drinking Sudocan, the user can temporarily elevate their privileges. This might be better left to other levels.

The next level could then introduce files.

After files we go on to networking (sending/receiving web requests) by fetching files from directories.