Add SGal(3) #312

Job	Run time
build-mac (macos-11)	9m 44s
build-mac (macos-12)	4m 58s
build-win (windows-2019, Visual Studio 16 2019)	7m 27s
build-ubuntu (ubuntu-20.04, Release, gcc, g++)	5m 0s
build-win (windows-2022, Visual Studio 17 2022)	8m 52s
build-ubuntu (ubuntu-20.04, Release, clang, clang++)	4m 27s
build-ubuntu (ubuntu-20.04, Debug, gcc, g++)	5m 13s
build-ubuntu (ubuntu-20.04, Debug, clang, clang++)	3m 17s
build-ubuntu (ubuntu-22.04, Release, gcc, g++)	6m 21s
build-ubuntu (ubuntu-22.04, Release, clang, clang++)	5m 8s
build-ubuntu (ubuntu-22.04, Debug, gcc, g++)	5m 55s
build-ubuntu (ubuntu-22.04, Debug, clang, clang++)	3m 34s
codecov	6m 32s
cppcheck	7m 15s
ceres	6m 52s
autodiff	6m 22s
valgrind	13m 1s
pybind11-cmake (ubuntu-20.04)	6m 10s
pybind11-pip (macos-latest, 3.7)	1m 59s
pybind11-cmake (ubuntu-latest)	6m 44s
pybind11-pip (macos-latest, 3.8)	2m 16s
pybind11-pip (macos-latest, 3.9)	1m 51s
pybind11-pip (macos-latest, 3.10)	1m 54s
pybind11-pip (ubuntu-latest, 3.7)	1m 56s
pybind11-pip (ubuntu-latest, 3.8)	1m 47s
pybind11-pip (ubuntu-latest, 3.9)	1m 45s
pybind11-pip (ubuntu-latest, 3.10)	1m 51s
	2h 18m 11s

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