[Feature Request]: Opus Audio Codec Support (.opus)

[velaachlorine]

Is there an existing issue for the feature?

• I have searched the existing feature requests

Describe the Feature

Opus is an audio codec developed by the same people behind Ogg Vorbis.
Several listening tests (1, 2, 3), have shown that it blows every other existing lossy audio codec out of the water in terms of quality at a given bitrate when compared to original lossless, allowing for better quality at a smaller filesize.

How Does The Feature Add To The Game?

Higher quality audio without necessarily bloating file size and pack size.
This is likely a hefty and involved thing to implement in the game and not necessarily a priority when compared to other, more pressing issues, but it would be nice to have nonetheless.

Additional Context

Opus documentation can be found at https://opus-codec.org/docs/.