Add PixelEngine #358

Job	Run time
📊 Static checks / Code style, file formatting, and docs	20s
🐧 Linux / Pixel Debug	2m 11s
🤖 Android / Pixel Debug (arch=arm32)	2m 22s
🍎 macOS / Pixel Debug	5m 13s
🍏 iOS / Pixel Debug	5m 49s
🤖 Android / Pixel Release (arch=arm32)	2m 17s
🍎 macOS / Pixel Release	2m 36s
🍏 iOS / Pixel Release	8m 35s
🤖 Android / Pixel Debug (arch=arm64)	2m 14s
🤖 Android / Pixel Release (arch=arm64)	2m 3s
🐧 Linux / Pixel Release	2m 50s
🌐 Web / Pixel Debug (threads=no)	3m 47s
🏁 Windows / Pixel Debug	2m 41s
🌐 Web / Pixel Debug (threads=yes)	3m 36s
🏁 Windows / Pixel Release	8m 50s
🌐 Web / Pixel Release (threads=no)	3m 37s
🌐 Web / Pixel Release (threads=yes)	3m 10s
	1h 2m 11s

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