tests: Add fuzzing harness for AES{CBC,}256{Encrypt,Decrypt}, poly1305_auth, CHKDF_HMAC_SHA256_L32, ChaCha20 and ChaCha20Poly1305AEAD
Summary:
Backport of core PR19296.
Depends on D9130.
Test Plan:
ninja bitcoin-fuzzers ./test/fuzz/test_runner.py <path_to_corpus>
Reviewers: #bitcoin_abc, majcosta
Reviewed By: #bitcoin_abc, majcosta
Differential Revision: https://reviews.bitcoinabc.org/D9131