apdu samples for Poseidon Hash

[rdubois-crypto]

Problem: Current samples/apdu provides vectors for Pedersen Hash, but not to the upgrade Poseidon. There is no related test in https://github.com/rdubois-crypto/app-starknet/blob/develop/tests/test_sign_hash.py.

Solution: Provide such samples following Pedersen Hash example and test.

[rdubois-crypto]

Would be nice to have the apdu with ins7 (poseidon) documented here:
https://github.com/LedgerHQ/app-starknet/blob/develop/docs/apdu.md

tried 5a07000020055b8f28706a5008d3103bcb2bfa6356e56b95c34fed265c955846670a6bb4ef, (replacing ins 02 by 07 in pedersen apdu sample) but just got a 6e01 return with repl (while other apdu's are ok).