Add key-type specific en- / decoder

[wbeck10]

Encoding and decoding of oqs keys using type specific en- / decoding is not working.
This pull requests adds type specific key der en- / decoding.

This PR will solve Fixes #562

[baentsch]

Thanks @wbeck10 -- much better with the use of the jinja code generation logic! At first glance this looks OK but can I ask you to run the code formatter as per https://github.com/open-quantum-safe/oqs-provider/blob/main/CONTRIBUTING.md#coding-style and check the result in such as to be able to run all tests in CI? Getting "DCO" to green would also be nice, but I'm not hung up on that.

[ryjones]

git commit --amend --author="Wolfgang Beck <[email protected]>" --no-edit

Per-repo:
git config user.email "[email protected]"

If you want it global:
git config --global user.email "[email protected]"

git push --force-with-lease origin encdec3

[baentsch]

@wbeck10 please see guidance of @ryjones on "DCO"; also, re-based needed.

[wbeck10]

Thanks @wbeck10 -- much better with the use of the jinja code generation logic! At first glance this looks OK but can I ask you to run the code formatter as per https://github.com/open-quantum-safe/oqs-provider/blob/main/CONTRIBUTING.md#coding-style and check the result in such as to be able to run all tests in CI? Getting "DCO" to green would also be nice, but I'm not hung up on that.

Sorry for the delay. I had a couple of weeks holiday :). I've fixed the formatter issues.

[wbeck10]

I don't know why the macOS-noopenssl test is failing with:
error registering mldsa44 with no hash

I don't think this is caused by my changes.

[baentsch]

No worries, this is due to #621: oqsprovider needs to change its algorithm names and code generation logic substantially.