feat(dynamic_obstacle_stop): add parameter to ignore unavoidable collisions (autowarefoundation#916) (autowarefoundation#813)

Signed-off-by: Maxime CLEMENT <maxime.clement@tier4.jp>

Author: maxime-clem

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

@@ -8,3 +8,4 @@
       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
       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)