Introduce cmake-format in CI

[yasahi-hpc]

This PR aims at introducing CMake format check with gersemi cmake-format.

[JBludau]

in kokkos/kokkos we use cmake-format and also have an action to check it. If you want less maintenance burden you could think about copying our scripts

[yasahi-hpc]

That makes sense. Maybe it is better to apply the same format as Kokkos for the consistency of the ecosystem.

[tpadioleau]

ok for me

[tpadioleau]

Consider adding a small explanation on how to apply these tools for contributors ?

[JBludau]

Consider adding a small explanation on how to apply these tools for contributors ?

If we do we should do this on Kokkos, too

[yasahi-hpc]

Consider adding a small explanation on how to apply these tools for contributors ?

Actually, I am considering to add a developers note to the documentation in another PR. cmake-format will be explained there as well as clang-format.

If we do we should do this on Kokkos, too

I think it would be useful for kokkos

[tpadioleau]

Actually, I am considering to add a developers note to the documentation in another PR. cmake-format will be explained there as well as clang-format.

Ok then it can wait

[tpadioleau]

Ok for me

[yasahi-hpc]

@tpadioleau Thank you for approval. I will merge this.
I will make a PR for docs next Monday.