feat: Add StaticObjectType in entity_properties

include/MantleAPI/Traffic/entity_properties.h

@@ -230,9 +230,55 @@ struct PedestrianProperties : public EntityProperties
 {
 };
 
+/// Specifies the type of a static object. 
+/// The values are derived from ASAM OSI stationary object type
+enum class StaticObjectType
+{
+  kOther = 1,  // Other (unspecified but known) type of static object.
+  // Object is a bridge.
+  kBridge = 2,
+  // Object is a building.
+  kBuilding = 3,
+  // Object is a pole (e.g. from a traffic light).
+  kPole = 4,
+  // Object is a pylon.
+  kPylon = 5,
+  // Object is a delineator (e.g. at a construction site).
+  kDelineator = 6,
+  // Object is a tree.
+  kTree = 7,
+  // Object is a barrier.
+  kBarrier = 8,
+  // Object is vegetation.
+  kVegetation = 9,
+  // Object is a curbstone.
+  kCurbstone = 10,
+  // Object is a wall.
+  kWall = 11,
+  // Landmarks corresponding to vertical structures in the environment.
+  kVerticalStructure = 12,
+  // Landmarks corresponding to rectangular structures in the environment, like walls.
+  kRectangularStructure = 13,
+  // Landmarks corresponding to overhead structures in the environment, like sign bridges.
+  kOverheadStructure = 14,
+  // Landmarks corresponding to reflective structures in the environment, like reflective poles on the road boarder.
+  kReflectiveStructure = 15,
+  // Landmarks corresponding to construction site elements in the environment, like beacons.
+  kConstructionSiteElement = 16,
+  // Object is a speed bump.
+  kSpeedBump = 17,
+  // Landmarks corresponding to sources of electromagnetic waves in the environment, like street lights.
+  kEmittingStructure = 18,
+  // Static object type not specified properly.
+  kInvalid = -1
+};
+
 /// Additional properties for entity objects of type static
 struct StaticObjectProperties : public EntityProperties
 {
+  /// Type of the static object (bridge, pole,...)
+  StaticObjectType static_object_type{StaticObjectType::kOther};
+  
   /// Amount to shift position along lane normal.
   /// It allows static objects like traffic signs to be placed at certain amount above the road.
   /// It is considered when the position of the entity is set.