Performance #1: Investigate converted and writing of a wav file

[jmg049]

Performance benchmarks for writing a wavers::WaveFile vs. hound::WavWriter show room for improvement for Wavers. It is worth a deeper investigation to writing wav data in Rust.

[jmg049]

Benchmarks should be up soon

[jmg049]

So it is still obvious from the benchmarks that something funny is happening when writing, but more importantly when reading and converting. Reading the native encoding of the files is fast, but when they need to be converted, there is a significant spike in run time (2x). Need to investigate further since last I benchmarked the conversion functions, they were insignificant.