test(mission_planner): add test of default_planner

[kosuke55]

Description

add test of default_planner
line converage is

• mission planner 75.4 %
  • lanelet2_plugins 86.1 %

before

after

planned route is like

Related links

Parent Issue:

• Link

How was this PR tested?

unit tests

Notes for reviewers

None.

Interface changes

None.

Effects on system behavior

None.

[github-actions]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 26.60%. Comparing base (1e26395) to head (fa506cd).
Report is 12 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9050      +/-   ##
==========================================
+ Coverage   26.55%   26.60%   +0.04%     
==========================================
  Files        1296     1303       +7     
  Lines       95711    95777      +66     
  Branches    38983    38986       +3     
==========================================
+ Hits        25419    25477      +58     
- Misses      67725    67738      +13     
+ Partials     2567     2562       -5     

Flag	Coverage Δ		*Carryforward flag
differential	9.92% <ø> (?)
total	26.55% <ø> (ø)		Carriedforward from 1e26395

*This pull request uses carry forward flags. Click here to find out more.

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