api: add support for no interp (interp_order=0) #299

Job	Run time
pytest-docker-py310-icx-omp-base	7m 23s
pytest-docker-py310-gcc-omp-arm64-base	6m 4s
pytest-docker-py310-gcc-omp-base	6m 47s
pytest-docker-py310-gcc-omp-adjoint	22m 17s
pytest-docker-py310-gcc-omp-arm64-adjoint	23m 49s
pytest-docker-py310-icx-omp-adjoint	24m 20s
pytest-ubuntu-py310-gcc9-omp-base	7m 30s
pytest-ubuntu-py310-gcc14-omp-base	7m 10s
pytest-osx-py312-clang-omp-base	6m 21s
pytest-ubuntu-py310-gcc9-omp-adjoint	29m 31s
pytest-ubuntu-py310-gcc14-omp-adjoint	31m 32s
pytest-ubuntu-py311-gcc10-noomp-base	6m 30s
pytest-ubuntu-py311-gcc11-cxxnoomp-adjoint	33m 2s
pytest-ubuntu-py312-gcc12-cxxomp-adjoint	39m 37s
pytest-ubuntu-py312-gcc12-cxxomp-base	8m 57s
pytest-ubuntu-py312-gcc13-omp-base	7m 3s
pytest-ubuntu-py311-gcc10-noomp-adjoint	29m 19s
pytest-ubuntu-py313-gcc14-omp-base	7m 2s
pytest-ubuntu-py311-gcc11-cxxnoomp-base	6m 38s
pytest-ubuntu-py313-gcc14-omp-adjoint	33m 38s
pytest-ubuntu-py312-gcc13-omp-adjoint	35m 46s
	6h 20m 16s

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