Add SGal(3) #310

Job	Run time
build-mac (macos-11)	8m 41s
build-mac (macos-12)	8m 57s
build-ubuntu (ubuntu-20.04, Release, gcc, g++)	4m 57s
build-ubuntu (ubuntu-20.04, Release, clang, clang++)	4m 25s
build-ubuntu (ubuntu-20.04, Debug, gcc, g++)	5m 16s
build-ubuntu (ubuntu-20.04, Debug, clang, clang++)	3m 12s
build-ubuntu (ubuntu-22.04, Release, gcc, g++)	5m 57s
build-ubuntu (ubuntu-22.04, Release, clang, clang++)	4m 45s
build-ubuntu (ubuntu-22.04, Debug, gcc, g++)	5m 53s
build-ubuntu (ubuntu-22.04, Debug, clang, clang++)	3m 39s
build-win (windows-2019, Visual Studio 16 2019)	7m 38s
build-win (windows-2022, Visual Studio 17 2022)	7m 51s
codecov	6m 22s
autodiff	6m 32s
cppcheck	7m 21s
ceres	6m 23s
valgrind	13m 14s
pybind11-cmake (ubuntu-20.04)	5m 52s
pybind11-cmake (ubuntu-latest)	6m 10s
pybind11-pip (macos-latest, 3.7)	3m 20s
pybind11-pip (macos-latest, 3.8)	2m 29s
pybind11-pip (macos-latest, 3.9)	2m 3s
pybind11-pip (macos-latest, 3.10)	2m 8s
pybind11-pip (ubuntu-latest, 3.7)	2m 3s
pybind11-pip (ubuntu-latest, 3.8)	1m 47s
pybind11-pip (ubuntu-latest, 3.9)	1m 48s
pybind11-pip (ubuntu-latest, 3.10)	1m 43s
	2h 20m 26s

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