Merge branch 'master' into pr-cc-refactoring #1417

Job	Run time
macos-latest: clang++ Release Threads	30m 35s
macos-latest: clang++ Release OneTBB	4m 32s
macos-latest: clang++ Release PaRSEC	4m 35s
ubuntu-20.04: /usr/bin/g++-9 Release Threads	50m 0s
ubuntu-20.04: /usr/bin/g++-9 Release OneTBB	3m 19s
ubuntu-20.04: /usr/bin/g++-9 Release PaRSEC	3m 32s
macos-latest: clang++ Debug Threads	28m 14s
macos-latest: clang++ Debug OneTBB	5m 43s
macos-latest: clang++ Debug PaRSEC	3m 32s
ubuntu-20.04: /usr/bin/g++-9 Debug Threads	50m 21s
ubuntu-20.04: /usr/bin/g++-9 Debug OneTBB	3m 50s
ubuntu-20.04: /usr/bin/g++-9 Debug PaRSEC	2m 49s
	3h 11m 2s

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