feat: OpenSSL-backed provider for CryptoCore traits

feat: reexport KMAC and SHA3 from tiny_keccak and add new Serializabl…

…e impls

feat: implements `Serializable` for different base types from the std

feat: adds a `define_byte_type` macro to easily derive byte types

fix: Expose missing `generator()` function for the R25519 curve

feat: adds implementation of some arithmetic operations for curve points

feat: adds implementation of some arithmetic operations for curve poi…

…nts,

feat: Dereference secrets to &[u8; LENGTH]

fix(cargo): remove security invalid category slug

Forgot to upgrade the version number in `Cargo.toml` (#76)

* Complete API for Covercrypt needs (#74)

* feat: add neutral scalar elements (one and zero) + fix lint errors

* feat: add secret type and use it to implement the symmetric key

* feat: add neutral `R25519PublicKey` element

* fix: inline neutral function calls

* fix: CI (`cargo hack check --feature-powerset`)

* feat: add zeroization to `R25519PublicKey`

* add a function to derive a key from a secret with optional additional info

* fill changelog

* Correct cargo hack errors

* Bump version

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Co-authored-by: Manuthor <manu.coste@gmail.com>