Add google's yamlfmt formatter

[janpieper]

See https://github.com/google/yamlfmt

Sadly it is called exactly the same like the tool that was developed by @mmlb that is already supported by Neoformat.

[mmlb]

My python package has been in archive'd mode since forever so maybe replace mine with google's?

[janpieper]

Archived does not mean it is not working anymore 🤔

And wouldn't this be some kind of a breaking change as these extra tools need to be installed 🤷 Pipelines etc. could fail.

[sbdchd]

Thanks!