Add test for `recursive_raycast()`. #600

Job	Run time
miri	1m 50s
incremental-mutants	0s
deny	43s
no_std	30s
build (ubuntu, stable, locked, true)	12m 30s
build (windows, stable, locked, false)	23m 40s
build (macos, stable, locked, false)	10m 40s
build (ubuntu, nightly, locked, false)	22m 47s
build (ubuntu, beta, locked, false)	13m 41s
build (ubuntu, stable, latest, false)	13m 33s
build (ubuntu, stable, minimal, false)	14m 31s
features	30m 6s
deploy	5s
fuzz	16m 8s
	2h 40m 44s

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