Add basic support for particle trails. #554

Job	Run time
Check format	1m 57s
build (2d, stable, windows-latest)	6m 9s
build (2d, stable, ubuntu-latest)	11m 36s
build (2d, stable, macos-latest)	3m 18s
build (3d, stable, windows-latest)	7m 21s
Coverage	4m 49s
build (3d, stable, ubuntu-latest)	11m 34s
run-examples	11m 48s
build (3d, stable, macos-latest)	1m 55s
build (all, stable, windows-latest)	6m 38s
build (all, stable, ubuntu-latest)	6m 22s
build (all, stable, macos-latest)	2m 40s
	1h 16m 7s

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