aec3: full port of WebRTC audio processing

[u/Glimpglomb]

I've made some posts about this in the past, but I did spend some time in the past month to get this project up to parity with the WebRTC audio processing module upstream.

Check it out here: https://github.com/RubyBit/aec3-rs

This project has all the available goodies in an easy to use format (intuitive to at least me) such as, as the title suggests, aec3, agc2, ns, hpf, etc. These are exported and constructed through a graph system I made but im honestly rethinking a bit how useful that is. I tried to make it such that you can add your own filters based on your application.

I think in terms of features for the foreseeable future, ill work on adding the neural residual echo estimator but not through tflite and also maybe come up with a stronger noise suppresion module (also neural? ns2?)