Attempt to reset the simulation on abort.

This is optional because I really don't know if I trust it. I don't see
much wrong with it (aside from the warning about not using it with auto-
resolve, because it won't restore lost aircraft), but it's really not
something I'd built for since it's not going to be possible as the RTS
features grow.

Fixes https://github.com/dcs-liberation/dcs_liberation/issues/2735.

qt_ui/simcontroller.py

@@ -84,6 +84,9 @@ class SimController(QObject):
         with self.game_loop.paused_sim():
             yield
 
+    def reset_simulation(self) -> None:
+        self.game_loop.reset()
+
     def run_to_first_contact(self) -> None:
         self.game_loop.run_to_first_contact()