A toy .wav file format decoder in Rust.

My main reference for the specification of the format is: http://soundfile.sapp.org/doc/WaveFormat/

A list of things the .wav decoder does not handle:

• Multiple channels (should be easy to fix that tho)
• Any audio format different from PCM (in particular, any compressed .wav)
• Samples with a size different than 16bits (shouldn't be hard to fix that too, it's just a matter of how the actual data bytes are parsed at the end)

Todo-list:

• .wav decoder
• Basic sound management (turn up/down the sound, stuff like that)
• Actual error handling (not panicking on every invalid file) ?