Use Heading from Campaign miz for Buildings

Like with most other GroundObjects now the Buildings also will use the Heading defined in the campaign miz and will place and rotate the generated TGO accordingly there.

game/layout/layout.py

@@ -247,7 +247,7 @@ class BuildingLayout(TgoLayout):
             name,
             self.category,
             position,
-            Heading.from_degrees(0),
+            position.heading,
             control_point,
             self.category == "fob",
         )