chore: test vector generation tool for core algorithms

[nsarlin-zama]

closes: please link all relevant issues

PR content/description

Generate test vector for some algorithms in core crypto (encryption, decryption, addition, scalar mul, ks, ms, br, se).

The adds a check in pcc that re-generate the vectors and check that they have not been modified.

Check-list:

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)
• Relevant issues are marked as resolved/closed, related issues are linked in the description
• Check for breaking changes (including serialization changes) and add them to commit message following the conventional commit specification

---

This change is 

[IceTDrinker]

apps/test-vectors/src/main.rs line 298 at r2 (raw file):

    let mut readme_path = PathBuf::new();
    readme_path.push(DATA_DIR);
    readme_path.push("README.md");

can we maybe iterate on dir content and remove all that is not README.md ?

[IceTDrinker]

apps/test-vectors/data/README.md line 72 at r2 (raw file):

```rust
const RAND_SEED: u128 = 0x74666865;

do not replicate consts from the code, they will likey diverge if we have to update the code ?

[nsarlin-zama]

Reviewable status: 0 of 38 files reviewed, 1 unresolved discussion (waiting on @IceTDrinker, @mayeul-zama, and @soonum)

---

apps/test-vectors/data/README.md line 72 at r2 (raw file):

Previously, IceTDrinker wrote…

do not replicate consts from the code, they will likey diverge if we have to update the code ?

we need those in the README if we send it without the associated code.

I added a comment with the params in the code to remind us to update the readme if we ever modify the parameters. Having a script to do that feels a bit over engineered right now.

---

apps/test-vectors/src/main.rs line 298 at r2 (raw file):

Previously, IceTDrinker wrote…

can we maybe iterate on dir content and remove all that is not README.md ?

done

[IceTDrinker]

@IceTDrinker reviewed 37 of 38 files at r1, 1 of 1 files at r2, 1 of 1 files at r3, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @mayeul-zama and @soonum)