Multiple names for an algorithm

[baentsch]

          The provider interface allows multiple names for an algorith, and OpenSSL itself does this for it algorithms.

See OSSL_ALGORITHM.algorithm_names in https://docs.openssl.org/3.0/man3/OSSL_ALGORITHM/

In addition to creating aliases for algorithms, it's also useful for loading algorithms by OID string, which may be something for oqs-provider to consider.

Originally posted by @danvangeest in #556 (comment)

[zadlg]

Since we use liboqs/docs to generate OSSL_ALGORITHM oqsprovider_signatures[], OSSL_ALGORITHM oqsprovider_asym_kems and others, shouldn't we move this issue to liboqs?

As I understand it, to add aliases, we simply add them to OSSL_ALGORITHM.algorithm_names by concatenating them with :.