Record and expose vestiging for eherkenning logins

[sergei-maertens]

Closes #3967

Changes

• Updated plugins to extract vestiging / serviceRestriction claim
• Updated AuthInfo model to store service restriction information & reproduce it in the auth context data format
• Added static variable to expose the branch number for eherkenning logins

Checklist

Check off the items that are completed or not relevant.

• Impact on features

  • Checked copying a form
  • Checked import/export of a form
  • Config checks in the configuration overview admin page
  • Problem detection in the admin email digest is handled

• Release management

  • I have labelled the PR as "needs-backport" accordingly

• I have updated the translations assets (you do NOT need to provide translations)

  • Ran ./bin/makemessages_js.sh
  • Ran ./bin/compilemessages_js.sh

• Commit hygiene

  • Commit messages refer to the relevant Github issue
  • Commit messages explain the "why" of change, not the how

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.58%. Comparing base (8da2af6) to head (b5e791e).
Report is 534 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4484   +/-   ##
=======================================
  Coverage   96.58%   96.58%           
=======================================
  Files         720      720           
  Lines       24045    24070   +25     
  Branches     2852     2859    +7     
=======================================
+ Hits        23223    23248   +25     
  Misses        559      559           
  Partials      263      263           

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