NPH style formatting

[dlesnoff]

There is this new style formatter nph proposed by @arnetheduck that could be used in place of nimpretty.
What do you think?

[ZoomRmc]

At the moment the output format is subject to constant change so it will result in noise in the diffs, so I don't think it's suitable at the moment.

If we adopt using it, we should wait for the stable release. I don't think we can come to a final conclusion until we know the styling standard nph ends up with.

The fact that nph is not planned to be configurable is also blessing and a curse. Let's wait.