I (Michael R. Welsh) assign to Ruffle LLC all rights, title, and
interest to copyrights of my personal contributions to Ruffle,
effective March 26, 2022.
Gated behind the "vp6" feature, enabled by default.
Utilizing a heavily stripped-down version of the NihAV project,
retaining only the VP6 decoder, relicensed under MIT.
Including VP6WithAlpha decoding, proper FrameDependency reporting,
and cropping the unwanted encoded pixels on the right/bottom manually.