Add a changelog

[James-E-A]

Ideally one that wouldn't be too hard for tooling (e.g. Debian package or whatever) to scrape

[James-E-A]

So far

• 0.0.1
  • added McEliece KEM, with parameter sets 348864, 460869, 6688128, and 6960119; only "Clean, Fast" implementations; the Plaintext Confirmation version was not added; only the NIST Round-4 version was
• 0.0.2
  • added SPHINCS+ signatures; detached only; with parameter sets sha2_128f_simple, sha2_128s_simple, sha2_192f_simple, sha2_192s_simple, sha2_256f_simple, sha2_256s_simple, shake_128f_simple, shake_128s_simple, shake_192f_simple, shake_192s_simple, shake_256f_simple, and shake_256s_simple; no Haraka version was added; no Robust version was added
• 0.0.3
  • added Dilithium signatures; detached only; with parameter sets Dilithium2, Dilithium3, and Dilithium5; no AES-based version was added

[James-E-A]

• 0.0.4
  • added Kyber, with parameter sets Kyber512, Kyber768, and Kyber1024
• 0.0.5
  • added Falcon, with parameter sets Falcon-512 and Falcon-1024; detached only; "compressed" version only, pending upstream #530
• 0.0.6
  • added HQC, with parameter sets hqc-128, hqc-192, and hqc-256

[James-E-A]

• 0.0.6.1
  • Upstream security fixes for Kyber

[James-E-A]

• 0.0.6.2
  • Add Mac OS support
• 0.0.7
  • Add Falcon-padded-512 and Falcon-padded-1024
  • Add compatibility for padded signatures to Falcon-512 and Falcon-1024