Format cmake file with cmake-format default settings

[zhao-shihan]

Simply format code with default cmake-format (also added some necessary ~~~ fence to annotations).

The default config uses 2-space indent and 80-char max width so they look quite different as before.

Follow up #10 (comment) .

[egpbos]

Thanks for trying this out! I'm afraid I'm not convinced of this change, though. The consistent standard 2-spacing is nice, but some changes I don't really like (e.g. the FFTW::* definitions that were nicely aligned and now actually look more messy, also some parameters that were logically separated across lines that now get bunched into one line, like for _all_components, and some more examples). If this is easily configurable, I'd be willing to have another look, but if not, let's drop this. By the way, unless I'm mistaken, it seems that cmake-format has not been maintained for 5 years. I don't think it would be wise to depend on it then.

[zhao-shihan]

If this is easily configurable, I'd be willing to have another look, but if not, let's drop this.

Yes, I don't think it is very easy to configure that. That's why I just simply tried the default one.

it seems that cmake-format has not been maintained for 5 years

That's true.

So let's just forget about this. I'll close this PR.