Added the Mensa of the tummy aches room

[ricgoe]

I added the Mensa of the Tummy Aches room according to the given instructions.

• The Mensa is located in the cellar
• In the Mensa you have options which meal you choose
• Depending on the meal you have to decide for some "side-quests" (not real quests, just deciding which action to take)
• If you are lucky you receive a healing mate item (Issue_06) which will enable you, when used, to teleport to a random room inside the ZDD
• in some cases (eating the stew normally) you will fade out and teleport as well
• added early return when in Mensa to skip "leave or inspect message" (to prevent the user from getting the mate without getting it in the Mensa)
• in some cases the player can be stuck in the Mensa
• added a utils.py that can be used to override print so the dialogue will be typed out (has to be imported in both the zdd_adventure.py and zdd_rooms.py)

[jaboll-ai]

Issue: Meat-containing meal option will teleport you, even if you decide to leave the room.

Expected behaviour: Go backt to the correct floor (cellar)