Add SGal(3) #300

Job	Run time
build-mac (macos-11)	9m 33s
build-mac (macos-12)	9m 13s
build-ubuntu (ubuntu-20.04, Release, gcc, g++)	5m 6s
build-ubuntu (ubuntu-20.04, Release, clang, clang++)	4m 26s
build-win (windows-2019, Visual Studio 16 2019)	8m 19s
build-ubuntu (ubuntu-20.04, Debug, gcc, g++)	5m 35s
build-win (windows-2022, Visual Studio 17 2022)	8m 38s
build-ubuntu (ubuntu-20.04, Debug, clang, clang++)	3m 20s
build-ubuntu (ubuntu-22.04, Release, gcc, g++)	6m 37s
build-ubuntu (ubuntu-22.04, Release, clang, clang++)	4m 50s
build-ubuntu (ubuntu-22.04, Debug, gcc, g++)	6m 3s
build-ubuntu (ubuntu-22.04, Debug, clang, clang++)	3m 58s
valgrind	0s
cppcheck	0s
codecov	0s
ceres	0s
autodiff	0s
pybind11-cmake	0s
pybind11-pip	0s
	1h 15m 38s

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