Required crypto primitives tests

[Fingolfin69]

THIS PR SHOULD NOT BE MERGED, IT CONTAINS CRYPTO PRIMITIVES TEST EVIDENCE

Checklist

Pallas/Vesta/Jujub group/field arithmetic tests

• On device tests (can be run on device and in speculous): src/ec.rs
• On host reference test, same as on device: ec-ref-test

ZIP32 Orchard derivation

1. Set test seed on device (see host-orchard-derive-test/tests/orchrad_derive.rs)
2. Dumped derived Orchard child keys sk cc from device
3. On host: generated reference sk and cc from same test seed.
4. Compare reference and derived sk and cc - it matches ✔️

In order to run host tests these commands can be used:

cd host-orchard-derive-test; cargo test

cd ec-ref-test; cargo test