Merge branch 'The-OpenROAD-Project:master' into master #2

Job	Run time
test-linux (ubuntu-20.04, focal, clang-12, c++11)	12m 7s
test-linux (ubuntu-20.04, focal, clang-12, c++14)	12m 10s
test-linux (ubuntu-20.04, focal, clang-12, c++17)	12m 13s
test-linux (ubuntu-20.04, focal, clang-12, c++20)	11m 57s
test-linux (ubuntu-20.04, focal, gcc-11, c++11)	24m 34s
test-linux (ubuntu-20.04, focal, gcc-11, c++14)	10m 4s
test-linux (ubuntu-20.04, focal, gcc-11, c++17)	10m 18s
test-linux (ubuntu-20.04, focal, gcc-11, c++20)	10m 25s
test-linux (ubuntu-20.04, focal, clang-11, c++11)	11m 59s
test-linux (ubuntu-20.04, focal, gcc-10, c++11)	10m 4s
	2h 5m 51s

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