refactor(side_shift): separate side shift module

[satoshi-ota]

Description

🤖[deprecated] Generated by Copilot at a5a5df2

Refactored the side shift scene module from the behavior_path_planner package to a separate package behavior_path_side_shift_module. This improves the modularity, reusability, and configurability of the scene modules for planning. Renamed and moved the source files, header files, parameter files, and plugin descriptions accordingly. Added unit tests for the side shift module using the planning_interface_test_manager package.

Tests performed

Psim

simplescreenrecorder-2023-12-08_17.11.48.mp4

Effects on system behavior

Nothing.

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[codecov]

Codecov Report

Attention: 1933 lines in your changes are missing coverage. Please review.

Comparison is base (765a596) 15.32% compared to head (cd10b8b) 8.93%.
Report is 181 commits behind head on main.

Files	Patch %	Lines
...nning/behavior_path_avoidance_module/src/scene.cpp	13.04%	561 Missing and 92 partials ⚠️
...path_avoidance_module/src/shift_line_generator.cpp	12.99%	443 Missing and 66 partials ⚠️
...nning/behavior_path_avoidance_module/src/utils.cpp	3.75%	195 Missing and 10 partials ⚠️
...th_goal_planner_module/src/goal_planner_module.cpp	0.00%	188 Missing ⚠️
...th_avoidance_by_lane_change_module/src/manager.cpp	17.70%	0 Missing and 79 partials ⚠️
...nning/behavior_path_avoidance_module/src/debug.cpp	0.00%	61 Missing ⚠️
...ing/behavior_path_avoidance_module/src/manager.cpp	18.86%	0 Missing and 43 partials ⚠️
...test/test_behavior_path_planner_node_interface.cpp	25.53%	0 Missing and 35 partials ⚠️
..._planner_module/src/default_fixed_goal_planner.cpp	0.00%	34 Missing ⚠️
...test/test_behavior_path_planner_node_interface.cpp	26.66%	0 Missing and 33 partials ⚠️
... and 18 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #5820       +/-   ##
==========================================
- Coverage   15.32%   8.93%    -6.39%     
==========================================
  Files        1721      84     -1637     
  Lines      118559   10975   -107584     
  Branches    37995    4458    -33537     
==========================================
- Hits        18169     981    -17188     
+ Misses      79657    8257    -71400     
+ Partials    20733    1737    -18996     

Flag	Coverage Δ
differential	8.93% <12.53%> (?)
total	?

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[kyoichi-sugahara]

LGTM
Thank you sooooo much!