Improved Doorway Placement

Doorways are now placed in different ways, depending on the dimensions
of the walls that they're on. This includes that large walls get two
doorways connecting to the same room.

src/main/java/StevenDimDoors/experimental/DoorwayData.java

@@ -33,4 +33,19 @@ public class DoorwayData
 	{
 		return axis;
 	}
+	
+	public int width()
+	{
+		return (maxCorner.getX() - minCorner.getX() + 1);
+	}
+	
+	public int height()
+	{
+		return (maxCorner.getY() - minCorner.getY() + 1);
+	}
+	
+	public int length()
+	{
+		return (maxCorner.getZ() - minCorner.getZ() + 1);
+	}
 }