Handle barrier entrances correctly

[vesameskanen]

Summary

PR #6774 introduced a new bug by blocking traversal through entrance nodes which belong to a barrier. This PR fixes the mentioned bug.

An example: https://www.openstreetmap.org/node/394848762

Issue

No issue created, this is a simple bug fix.

Unit tests

Unit test added.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.29%. Comparing base (4ed53a0) to head (bf7ce37).

Additional details and impacted files

@@            Coverage Diff             @@
##             dev-2.x    #7067   +/-   ##
==========================================
  Coverage      72.28%   72.29%           
- Complexity     20180    20183    +3     
==========================================
  Files           2189     2189           
  Lines          81217    81217           
  Branches        8140     8140           
==========================================
+ Hits           58710    58712    +2     
+ Misses         19632    19631    -1     
+ Partials        2875     2874    -1     

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[leonardehrenfried]

Since the test was a copy&paste job, I took the liberty to convert it to a parameterized test. If you agree with this, can you apply this commit? leonardehrenfried@259822a

[miklcct]

I am approving this now.

There may be some problems in the definition of what an entrance is (for example, entrance=secondary is missing on the list) but it is better handled in another PR.