Advanced Features Like Animation and Demuxing

[TimOliver]

At the moment, this library only covers the gamut of encoding and decoding WebP image data. But Google has provided more features and capabilities for WebP in the WebPMux and the WebPDemux frameworks.

I don't have a specific need for these particular feature sets at the moment, but if anyone does, please comment here and let me know! :)

[HearseDev]

this would be great, could you support animation and maybe make it so it returns an array of CGImages