Add PixelEngine #356

Job	Run time
📊 Static checks / Code style, file formatting, and docs	25s
🍎 macOS / Pixel Debug	3m 15s
🍏 iOS / Pixel Debug	3m 30s
🍎 macOS / Pixel Release	2m 31s
🐧 Linux / Pixel Debug	2m 36s
🤖 Android / Pixel Debug (arch=arm32)	1m 3s
🍏 iOS / Pixel Release	3m 28s
🤖 Android / Pixel Release (arch=arm32)	55s
🐧 Linux / Pixel Release	2m 30s
🤖 Android / Pixel Debug (arch=arm64)	1m 9s
🌐 Web / Pixel Debug (threads=no)	3m 28s
🤖 Android / Pixel Release (arch=arm64)	56s
🌐 Web / Pixel Debug (threads=yes)	3m 26s
🏁 Windows / Pixel Debug	3m 3s
🏁 Windows / Pixel Release	3m 23s
🌐 Web / Pixel Release (threads=no)	3m 24s
🌐 Web / Pixel Release (threads=yes)	3m 15s
	42m 17s

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