VoiceCat desktop codec/DSP bindings

Opus 1.5.2: BSD-3-Clause. See Opus.txt for copyright, license, and patent notices.
Upstream: https://opus-codec.org/
Release: https://downloads.xiph.org/releases/opus/opus-1.5.2.tar.gz
SHA-256: 65c1d2f78b9f2fb20082c38cbe47c951ad5839345876e46941612ee87f9a7ce1

RNNoise code: BSD-3-Clause. See RNNoise.txt.
RNNoise model weights: CC0-1.0, as recorded in third_party/README.md.
Upstream: https://github.com/xiph/rnnoise
Vendored commit: 70f1d256acd4b34a572f999a05c87bf00b67730d
CC0: https://creativecommons.org/publicdomain/zero/1.0/