compiler: Matnest support #449

Job	Run time
pytest-ubuntu-py311-gcc11-noomp-base	51m 6s
pytest-ubuntu-py311-gcc11-noomp-adjoint	38m 43s
pytest-ubuntu-py312-gcc12-omp-base	1h 8m 33s
pytest-ubuntu-py312-gcc12-omp-adjoint	51m 6s
pytest-ubuntu-py39-gcc7-omp-base	53m 8s
pytest-ubuntu-py39-gcc7-omp-adjoint	40m 14s
pytest-ubuntu-py310-gcc10-noomp-base	50m 41s
pytest-ubuntu-py310-gcc10-noomp-adjoint	39m 18s
pytest-ubuntu-py312-gcc13-omp-base	1h 7m 34s
pytest-ubuntu-py312-gcc13-omp-adjoint	51m 24s
pytest-ubuntu-py39-gcc9-omp-base	53m 30s
pytest-ubuntu-py39-gcc9-omp-adjoint	39m 44s
pytest-osx-py312-clang-omp-base	34m 13s
pytest-docker-py39-gcc-omp-base	46m 50s
pytest-docker-py39-gcc-omp-adjoint	35m 53s
pytest-docker-py39-icx-omp-base	39m 19s
pytest-docker-py39-icx-omp-adjoint	35m 34s
	13h 16m 50s

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