dsl: Move SubDimension thickness evaluation to the thicknesses themselves #7108

Job	Run time
pytest-ubuntu-py311-gcc11-noomp-base	50m 43s
pytest-ubuntu-py311-gcc11-noomp-adjoint	39m 11s
pytest-ubuntu-py312-gcc12-omp-base	1h 8m 6s
pytest-ubuntu-py312-gcc12-omp-adjoint	51m 18s
pytest-ubuntu-py39-gcc7-omp-base	52m 52s
pytest-ubuntu-py39-gcc7-omp-adjoint	40m 8s
pytest-ubuntu-py310-gcc10-noomp-base	50m 58s
pytest-ubuntu-py310-gcc10-noomp-adjoint	39m 48s
pytest-ubuntu-py312-gcc13-omp-base	1h 7m 33s
pytest-ubuntu-py312-gcc13-omp-adjoint	49m 58s
pytest-ubuntu-py39-gcc9-omp-base	54m 3s
pytest-ubuntu-py39-gcc9-omp-adjoint	40m 54s
pytest-osx-py312-clang-omp-base	33m 13s
pytest-docker-py39-gcc-omp-base	46m 52s
pytest-docker-py39-gcc-omp-adjoint	36m 40s
pytest-docker-py39-icx-omp-base	45m 59s
pytest-docker-py39-icx-omp-adjoint	43m 5s
	13h 31m 21s

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