Improve serialization format of `EffectAsset` (#294) #574

Job	Run time
Check format	1m 13s
build (2d, stable, windows-latest)	8m 25s
build (2d, stable, ubuntu-latest)	13m 3s
build (2d, stable, macos-latest)	3m 54s
run-examples	13m 0s
build (3d, stable, windows-latest)	9m 2s
Coverage	4m 30s
build (3d, stable, ubuntu-latest)	12m 53s
build (3d, stable, macos-latest)	7m 17s
build (all, stable, windows-latest)	7m 52s
build (all, stable, ubuntu-latest)	7m 57s
build (all, stable, macos-latest)	3m 52s
	1h 32m 58s

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