add AD support for SampledSpectrum #862

Job	Run time
macos-13 / Release / homebrew-clang	30m 0s
ubuntu-22.04 / Release / gcc-11	24m 54s
windows-2019 / Release / cl	36m 25s
ubuntu-22.04 / Debug / gcc-11	23m 13s
windows-2019 / Release / clang	37m 35s
ubuntu-22.04 / Release / gcc-12	30m 18s
windows-2019 / Release / clang-cl	36m 38s
macos-13 / Debug / homebrew-clang	27m 55s
windows-2019 / Debug / cl	32m 47s
ubuntu-22.04 / Debug / gcc-12	25m 54s
windows-2019 / Debug / clang	34m 5s
ubuntu-22.04 / Release / gcc-13	27m 18s
windows-2019 / Debug / clang-cl	30m 10s
windows-2022 / Release / cl	35m 21s
windows-2022 / Release / clang	37m 31s
ubuntu-22.04 / Debug / gcc-13	23m 43s
windows-2022 / Release / clang-cl	37m 54s
windows-2022 / Debug / cl	23m 48s
ubuntu-22.04 / Release / clang-14	26m 11s
windows-2022 / Debug / clang	34m 42s
ubuntu-22.04 / Debug / clang-14	19m 41s
windows-2022 / Debug / clang-cl	34m 14s
ubuntu-22.04 / Release / clang-15	25m 31s
ubuntu-22.04 / Debug / clang-15	20m 17s
ubuntu-22.04 / Release / clang-16	26m 17s
ubuntu-22.04 / Debug / clang-16	20m 47s
ubuntu-22.04 / Release / clang-17	54s
ubuntu-22.04 / Debug / clang-17	1m 28s
	12h 45m 31s

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