MCR-3137 Modernize password hashing and hash verification

[toKrause]

Link to jira.

REQUIRES MyCoRe-PR

[erodde]

Tested new hashing with following test setup:

1. Setup new MIR with codebase main in mycore and mir
2. Created new testuser with old hashing mechanism
3. Created publication with testuser
4. Switched mir and mycore to branches with name issues/MCR-3137_Modernize-password-hashing-and-hash-verification and rebuilt
5. Using H2 database in local setup, dropped corresponding constraint
6. Restarted MIR and tried to login with user
7. Login was successful. Publication could still be edited by user
8. Logged in with administrator - Login was successful
9. Checked hashtype in database, hashtype now has value "argon2"

Codebase in MIR at the time of testing step 4 was a merge of branches "issues/MCR-3137_Modernize-password-hashing-and-hash-verification and rebuilt" and "issues/MIR-1320-mir_support_for_solr_authentication_and_solr_cloud". MIR combined with mycore main is not runnable right now without the code from the latter. Test was successful. I deem this save to merge.