This scenario uses the huge final map from THoT, with different situations
split across different rooms of the map. THoT's final scenario was redesigned
with a completely new map in 457d9d17f, so this gives the test code its own
copy of the map.
There's a one-hex change to the original: the test puts side 1's leader in a
wall, isolated from the action. To clarify that that's intentional, the map
copy changes that hex to be passable, still surrounded by wall.
