OGG support!!!! (using stbvorbis.js)

[dtinth]

Closes #509

Thanks to @hajimehoshi’s stbvorbis.js, it works pretty well and now allows Bemuse to support OGG/Vorbis in iOS and Safari!

Changelog

OGG support is added to iOS and Safari, using [@hajimehoshi]’s stbvorbis.js library to decode OGG files in-browser. This means that Bemuse no longer relies on proprietary audio file format (m4a) to function in Safari and iOS, and thus:

• Generating a Bemuse package is faster because m4a files no longer to be generated.

• Less disk space requirement as only ogg files are needed.

• A Bemuse package can now be generated on Linux, due to proprietary tools to use Apple’s m4a encoder is no longer needed.

With this change, creating content for Bemuse will become easier and more accessible!

[akibot]

	Fails
🚫	src/sampling-master/vendor/stbvorbis/stbvorbis-e6da5fe.js is not formatted using Prettier.

	Messages
📖	You can run yarn style:fix to automatically format all files using Prettier.

Generated by 🚫 dangerJS

[codecov-io]

Codecov Report

Merging #534 into master will decrease coverage by 0.72%.
The diff coverage is 14.89%.

@@            Coverage Diff             @@
##           master     #534      +/-   ##
==========================================
- Coverage   81.38%   80.65%   -0.73%     
==========================================
  Files         153      154       +1     
  Lines        4619     4667      +48     
  Branches       68       68              
==========================================
+ Hits         3759     3764       +5     
- Misses        842      885      +43     
  Partials       18       18

Impacted Files	Coverage Δ
src/sampling-master/ogg.js	4.87% <4.87%> (ø)
src/sampling-master/index.js	95.72% <83.33%> (-3.37%)	⬇️

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