AnimatedTexture helper class#89

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Windows10CE wants to merge 4 commits intomasterfrom

features/animated-texture

Commits on Aug 5, 2021

Start on AnimatedTexture, start GIF reading
Windows10CE
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Commits on Aug 8, 2021

Switch out GIFs for APNGs, currently have required metadata done
Windows10CE
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Commits on Aug 21, 2021

WIP Image Data Loading
Windows10CE
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Commits on Oct 3, 2021

Switch to using System.Drawing
Windows10CE
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