Pouvoir rechercher une route départementale avec RDXXX

[mmarchois]

• Closes #833

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.10%. Comparing base (572dedf) to head (ef1f698).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #834 +/- ## ========================================= Coverage 99.10% 99.10% - Complexity 1170 1171 +1 ========================================= Files 218 218 Lines 4935 4937 +2 ========================================= + Hits 4891 4893 +2 Misses 44 44 ```

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