Rotate ground-units as in the campaign miz

This implements a logic to rotate groups which are generated from templates like the origin (ground unit) which was placed by the campaign designer

resources/tools/template_helper.py

@@ -521,6 +521,7 @@ def update_factions(generator_names) -> None:
     #             ground_object = SamGroundObject(
     #                 namegen.random_objective_name(),
     #                 initial_position,
+    #                 Heading.from_degrees(0),
     #                 control_point,
     #             )
     #