Fix filtering by submode

[vpaturet]

Summary

As reported in #5255, filtering by submode does not work in the Transmodel API.
This PR fixes the logic for the special case where an exclusion filter (ex: banned authorities) is used together with a submode filter.

Issue

Closes #5255

Unit tests

Added unit tests.

Documentation

No

[codecov]

Codecov Report

Patch coverage: 25.00% and project coverage change: +0.02% 🎉

Comparison is base (cca59ff) 65.89% compared to head (481ced9) 65.91%.

❗ Current head 481ced9 differs from pull request most recent head cd24938. Consider uploading reports for the commit cd24938 to get more accurate results

Additional details and impacted files

@@              Coverage Diff              @@
##             dev-2.x    #5261      +/-   ##
=============================================
+ Coverage      65.89%   65.91%   +0.02%     
- Complexity     14781    14789       +8     
=============================================
  Files           1770     1770              
  Lines          68680    68683       +3     
  Branches        7276     7278       +2     
=============================================
+ Hits           45259    45275      +16     
+ Misses         20935    20922      -13     
  Partials        2486     2486              

Files Changed	Coverage Δ
...i/request/request/filter/TransitFilterRequest.java	87.03% <0.00%> (+3.70%)	⬆️
...ting/api/request/request/filter/SelectRequest.java	83.78% <33.33%> (-2.14%)	⬇️

... and 3 files with indirect coverage changes

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