Add SGal(3) #294

Job	Run time
build-mac (macos-11)	5m 31s
build-ubuntu (ubuntu-20.04, Release, gcc, g++)	5m 12s
build-mac (macos-12)	5m 13s
build-ubuntu (ubuntu-20.04, Release, clang, clang++)	4m 31s
build-ubuntu (ubuntu-20.04, Debug, gcc, g++)	5m 12s
build-win (windows-2019, Visual Studio 16 2019)	8m 45s
build-ubuntu (ubuntu-20.04, Debug, clang, clang++)	3m 2s
build-win (windows-2022, Visual Studio 17 2022)	8m 40s
build-ubuntu (ubuntu-22.04, Release, gcc, g++)	5m 33s
build-ubuntu (ubuntu-22.04, Release, clang, clang++)	5m 3s
build-ubuntu (ubuntu-22.04, Debug, gcc, g++)	7m 2s
build-ubuntu (ubuntu-22.04, Debug, clang, clang++)	5m 54s
codecov	0s
ceres	0s
valgrind	0s
cppcheck	0s
autodiff	0s
pybind11-cmake	0s
pybind11-pip	0s
	1h 9m 38s

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