tests

Add a simple subduction 2d chunk model cookbook #1752

Job	Run time
coverage	12m 55s
test_indentation	35s
linux-gdb-valgrind (ubuntu-22.04, Debug)	9m 9s
test_linux_and_macos_mpi (ubuntu-latest, Release)	4m 32s
test_linux_and_macos (ubuntu-latest, Release)	3m 37s
test_linux_non_unity_no_optional_dependencies (ubuntu-latest, Debug)	9m 29s
test_linux_and_macos_mpi (macos-latest, Release)	4m 44s
test_linux_and_macos (ubuntu-latest, Debug)	8m 15s
test_linux_and_macos (macos-latest, Release)	4m 42s
test_windows (windows-2022, Release, Visual Studio 17 2022)	6m 26s
test_linux_and_macos (macos-latest, Debug)	11m 48s
test_windows (windows-2022, Debug, Visual Studio 17 2022)	6h 0m 8s
test_linux_and_macos (macos-11, Release)	5m 56s
test_linux_and_macos (macos-11, Debug)	15m 31s
linux-gcc_mpi	0s
linux-cmake_mpi	0s
	7h 37m 47s

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