Dcc Server (EXPOSUREAPP-7504) (#3347)

* Extend corona test data structures with digital covid certificate related properties.
+Some additional wiring, plumbing and tests for future PRs.

* LINTs

* Adjust TestRegistrationRequest to supply dcc consent and DOB on test registration.

* Remove explicit assignment, defaults are sufficient.

* A few additional unit tests to check defaults.

* DateOfBirthKey calculation, draft 1

* Fix date parser pattern.

* wip

* Adjust padding calculation to take the new dobHash into account.
Some refactoring to make it less complicated to adjust for future changes.

* klint, ofc.

* TestCertificate repo, draft1.

* DGC -> dcc

* TestCertificateRepository, draft 2

* TestCertificateRepository, draft 3

* TestCertificateRepository, draft 4

* Unit tests, draft 1.

* Add new app config parameters and implement delay mechanism.

* Unit tests, draft 2

* dcc server

* merge 2.4
add di module

* clean up

* fix exception

* add server environment

* fix test

Co-authored-by: Matthias Urhahn <matthias.urhahn@sap.com>
Co-authored-by: Mohamed Metwalli <mohamed.metwalli@sap.com>
Co-authored-by: Chilja Gossow <49635654+chiljamgossow@users.noreply.github.com>