feat(start_planner): add skip_rear_vehicle_check parameter

[kyoichi-sugahara]

Description

launcher PR should be merged first

Add the skip_rear_vehicle_check parameter to the start planner module configuration. This parameter allows disabling the rear vehicle check during collision detection. By default, the rear vehicle check is enabled.

How was this PR tested?

run planning_simulator

default behavior is don't insert stop point from start planner because ego is preventing rear vehicle's progress

      skip_rear_vehicle_check: false

https://github.com/user-attachments/assets/ced3a866-50a5-4ff4-a4dc-a88bcaa30a3b

by changing paramter to true, don't insert stop point

      skip_rear_vehicle_check: true

https://github.com/user-attachments/assets/287daf0d-2ca7-4241-b960-c6f03aeb505a

Notes for reviewers

None.

Interface changes

None.

Effects on system behavior

None.

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[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 5 lines in your changes missing coverage. Please review.

Project coverage is 27.79%. Comparing base (aaf5f27) to head (6b5d500). Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
..._start_planner_module/src/start_planner_module.cpp	0.00%	3 Missing :warning:
...behavior_path_start_planner_module/src/manager.cpp	0.00%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #8863 +/- ## ========================================== - Coverage 27.82% 27.79% -0.03% ========================================== Files 1325 1329 +4 Lines 98809 98813 +4 Branches 39667 39649 -18 ========================================== - Hits 27496 27469 -27 - Misses 71281 71294 +13 - Partials 32 50 +18 ``` | [Flag](https://app.codecov.io/gh/autowarefoundation/autoware.universe/pull/8863/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=autowarefoundation) | Coverage Δ | | *Carryforward flag | |---|---|---|---| | [differential](https://app.codecov.io/gh/autowarefoundation/autoware.universe/pull/8863/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=autowarefoundation) | `0.00% <0.00%> (?)` | | | | [total](https://app.codecov.io/gh/autowarefoundation/autoware.universe/pull/8863/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=autowarefoundation) | `27.81% <ø> (-0.02%)` | :arrow_down: | Carriedforward from [69d3176](https://app.codecov.io/gh/autowarefoundation/autoware.universe/commit/69d317663c4a96435b4a20366185a64cdae6a758?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=autowarefoundation) | *This pull request uses carry forward flags. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=autowarefoundation) to find out more.

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