Add display abstraction

In case we want to run this on something that isn't an ANSI terminal, we
have the option to implement it however we want.

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

examplegame/__init__.py

@@ -7,11 +7,8 @@ from agame.trigger import *
 # This is the *game* here
 database = Database()
 
+# This is the start room
+start_room = "prelude"
+
 from . import rooms
 from . import vars
-
-# Build the game state
-game = Game(
-    database=database,
-    room=database.rooms["prelude"],
-)