Draft: Integrate MantleAPI v12

• Reimplement deleted Mocks that return other mocks on e.g. GetEntityRepository() in test/TestUtils.h as Fake classes
• Replace mocks with fake classes in tests
• fix wrong usage of (local) LaneIds and (global) UniqueId for lanes in LateralDistanceAction and ConvertScenarioAbsoluteTargetLaneTest
• adjust to new getter for entities (weak ptr instead of optional reference wrapper)
• entities in the repo are now shared ptr instead of unique ptrs (for tests)
• adjust to new route handling (removed AssignRoute(), add Create() in route repository and SetRoute() in entity)
• adjust to renaming of members in route definition
• adjust to redefinition of polynomial in SplineSection (struct instead of tuple)
• fix namespace for MockStatistics

engine/gen/Storyboard/MotionControlAction/LaneChangeAction_base.h

 /********************************************************************************
- * Copyright (c) 2021-2024 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
+ * Copyright (c) 2021-2025 Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License 2.0 which is available at
@@ -27,7 +27,7 @@ public:
     Entities entities;
     double targetLaneOffset;
     TransitionDynamics laneChangeActionDynamics;
-    std::function<mantle_api::UniqueId()> GetLaneChangeTarget;
+    std::function<mantle_api::LaneId()> GetLaneChangeTarget;
   };
   struct Interfaces
   {
@@ -48,4 +48,4 @@ protected:
   Interfaces mantle;
 };
 
-}  // namespace OpenScenarioEngine::v1_3
\ No newline at end of file
+}  // namespace OpenScenarioEngine::v1_3