Add U-turn costs for car routing

[hbruch]

Summary

This PR adds a (hard coded) cost for car U-turns in case the turnAngle is between (hard coded) angles 170 and 190.

This PR is an alternative to #5985, which reuses pre-existing split vertices instead of creating a split vertex for every edge to be split.

Issue

Closes #5955.

Unit tests

This PR provides a testcase to illustrate #5955. No testcase had to be updated for this fix.

Bumping the serialization version id

No changes to serialization.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.64%. Comparing base (de56d00) to head (5567b4c).

Additional details and impacted files

@@            Coverage Diff             @@
##             dev-2.x    #5956   +/-   ##
==========================================
  Coverage      69.64%   69.64%           
- Complexity     17164    17172    +8     
==========================================
  Files           1943     1943           
  Lines          73795    73804    +9     
  Branches        7552     7554    +2     
==========================================
+ Hits           51394    51404   +10     
  Misses         19772    19772           
+ Partials        2629     2628    -1     

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[leonardehrenfried]

I will convert this to a draft. You can convert it back to a PR when you start working on it again.