avfoundation 0.1.3

Rust bindings for AVFoundation
# avfoundation

AVFoundation bindings for Rust.

# How to playback MIDI
```rust
let sequencer = AVAudioSequencer::with_engine(&engine);
sequencer.load_from_url(path, );
```


# how to observe parameter changes?
* AUParameterObserver

# how to get a reference to plugin view?
* 

# parameter automation
* AUParameterAutomationEvent