dsl: Move SubDimension thickness evaluation to the thicknesses themselves #7135

Job	Run time
pytest-ubuntu-py311-gcc11-noomp-base	50m 46s
pytest-ubuntu-py311-gcc11-noomp-adjoint	39m 40s
pytest-ubuntu-py312-gcc12-omp-base	1h 7m 26s
pytest-ubuntu-py312-gcc12-omp-adjoint	50m 56s
pytest-ubuntu-py39-gcc7-omp-base	54m 36s
pytest-ubuntu-py39-gcc7-omp-adjoint	40m 31s
pytest-ubuntu-py310-gcc10-noomp-base	51m 3s
pytest-ubuntu-py310-gcc10-noomp-adjoint	39m 38s
pytest-ubuntu-py312-gcc13-omp-base	1h 7m 29s
pytest-ubuntu-py312-gcc13-omp-adjoint	51m 20s
pytest-ubuntu-py39-gcc9-omp-base	53m 39s
pytest-ubuntu-py39-gcc9-omp-adjoint	40m 21s
pytest-osx-py312-clang-omp-base	33m 2s
pytest-docker-py39-gcc-omp-base	46m 44s
pytest-docker-py39-gcc-omp-adjoint	36m 41s
pytest-docker-py39-icx-omp-base	37m 28s
pytest-docker-py39-icx-omp-adjoint	35m 23s
	13h 16m 43s

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