feat: add definition for bus stop lanelets

[mehmetdogru]

Description

This PR adds bus stop definition that can be defined using the bus_stop tag to support bus stop specific features.

Main Issue: autowarefoundation/autoware_universe#10963

How was this PR tested?

Notes for reviewers

None.

Effects on system behavior

None.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 16.35%. Comparing base (5a32788) to head (67d696f).
Report is 20 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #72      +/-   ##
==========================================
+ Coverage   16.31%   16.35%   +0.04%     
==========================================
  Files          42       44       +2     
  Lines        3089     3136      +47     
  Branches     1397     1425      +28     
==========================================
+ Hits          504      513       +9     
- Misses       2490     2525      +35     
- Partials       95       98       +3     

Flag	Coverage Δ		*Carryforward flag
differential	16.35% <ø> (-0.39%)	⬇️
total	16.25% <ø> (+0.42%)	⬆️	Carriedforward from 5a32788

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

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