make all dimensional analysis tests use `physics` submodules directly rather than through `Formulae` (to avoid using `@pytest.mark.skipif("numba.config.DISABLE_JIT")`)

[slayoo]

[slayoo]

For the record, one way of workarounding it, would be to access physics sybmodules (also) directly in unit tests, rather than through Formulae?

[slayoo]

Actually, accessing physics directly in unit tests (as done, e.g., here: #1565) makes the dimensional analysis checks work regardless of JIT settings. This makes it not necessary to repeat @pytest.mark.skipif("numba.config.DISABLE_JIT")for each test!

Renaming the test then...