NRH 3 Level

We should have a NRH 3 level. It should be laid out exactly as NRH 3.

The level shall include the following features:
- The big red button: If you press it, RTP monsters come running and attack you.
- Fish: The door to fish should be a closet that if you open it, you find a fish.
- Server Room: The door to the server room should always be locked.
- Drink: You should have a drink machine (perhaps a monster with symbol D) which you can #chat with and buy potions of booze / potions of water / slime mold juice using credits purchased from a drink admin. Drink should also be randomly generated empty.
- Drink admins: One dorm room should be randomly generated with a drink admin. If you #chat with the drink admin, he can refill drink (if it's empty). You can also #chat to purchase drink credits.

No files, tests, or entry points are named. Start by locating the existing NRH 3 level implementation and the level-generation and chat systems, then map each requested feature to those areas; done means the new level includes all listed rooms, interactions, drink behavior, and randomly generated drink admins.

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