Split duration buffer param into 2 params for add/remove buffer

Signed-off-by: Maxime CLEMENT <[email protected]>

autoware_launch/config/planning/scenario_planning/lane_driving/behavior_planning/behavior_velocity_planner/dynamic_obstacle_stop.param.yaml

@@ -6,6 +6,7 @@
       stop_distance_buffer: 0.5  # [m] extra distance to add between the stop point and the collision point
       time_horizon: 5.0  # [s] time horizon used for collision checks
       hysteresis: 1.0  # [m] once a collision has been detected, this hysteresis is used on the collision detection
-      decision_duration_buffer : 1.0  # [s] duration between no collision being detected and the stop decision being cancelled
+      add_stop_duration_buffer : 0.5  # [s] duration where a collision must be continuously detected before a stop decision is added
+      remove_stop_duration_buffer : 1.0  # [s] duration between no collision being detected and the stop decision being remove 
       minimum_object_distance_from_ego_path: 1.0  # [m] minimum distance between the footprints of ego and an object to consider for collision
       ignore_unavoidable_collisions : true  # if true, ignore collisions that cannot be avoided by stopping (assuming the obstacle continues going straight)