feat: operation mode debug panel

[isamu-takagi]

Description

The legacy state panel is used to debug the operation mode.
Since it would be confusing to have a panel with the same function, I extracted that part.
Also, since it will be used as a panel dedicated to debugging, the following changes have been made:

• The mode change button can be used even if is_mode_*_available is false.
• The mode change button can be used even if it is the same as the current mode.
• Display raw value when unknown mode

Related links

• feat(tier4_adapi_rviz_plugin): add legacy state panel #7494 (comment)

How was this PR tested?

Run planning simulation and change to drive mode and stop mode.

Notes for reviewers

None.

Interface changes

None.

Effects on system behavior

None.

[github-actions]

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[xmfcx]

@isamu-takagi -san, thanks for the consideration.

Could you also rename the panel to operation_mode_debug_panel to avoid confusion?

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 97 lines in your changes missing coverage. Please review.

Project coverage is 28.07%. Comparing base (c40efa2) to head (df1e2c1).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...api_rviz_plugin/src/operation_mode_debug_panel.cpp	0.00%	97 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8933      +/-   ##
==========================================
- Coverage   28.10%   28.07%   -0.04%     
==========================================
  Files        1314     1317       +3     
  Lines       98279    98392     +113     
  Branches    39714    39718       +4     
==========================================
  Hits        27625    27625              
- Misses      70550    70663     +113     
  Partials      104      104              

Flag	Coverage Δ		*Carryforward flag
differential	0.00% <0.00%> (?)
total	28.10% <ø> (ø)		Carriedforward from c40efa2

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