Create the Rust representation of PSA Crypto operations

[hug-dev]

The PSA methods, written in Rust, can very largely be inspired by the ones created in the Parsec Rust Client replacing the key_name as a String with the key ID.

The following principle was adopted:

• use Vec<u8> whenever a buffer is needed
• use a Rust abstraction instead of the bindgen type
• restrict the algorithm argument to the only possible values for the specific operation. For example psa_sign_hash and psa_verify_hash directly take an AsymmetricSignature type and not the high-level Algorithm