Add a script to generate GitHub release notes

[ddbeck]

Based on our discussion on documenting release notes #3158 (comment) I wrote a script to generate (some but not all) release notes and pre-populate the GitHub release page.

I wasn't able to automate all of it, so I prompt for some information instead. Let me know what you think!

[Elchi3]

Really cool little automation here :) Thanks, Daniel! 👍

I have two things I wondered about while running the for the latest release just now. See comments inline.
And then I wonder where this should live. tests/ is probably okay? (render.js is in there as well). Or should we start an infamous utils folder? 😄

Will have a closer look at the code and the newly added devDependency once I have more time available.

[ddbeck]

Just ran through the release process myself for the first time and fixed up a few small issues I ran into (typos and setting the prerelease checkbox—that last one we'll have to change when we hit 1.0, I guess).

[ExE-Boss]

This will conflict with #2338, which I’d like to merge first for reasons outlined in #2338 (comment).

[ddbeck]

@ExE-Boss the conflict being the package-lock.json changes, right? I think that might be another point in favor of not adding an additional dependency here and rewriting it to do without.

[ddbeck]

OK, I'm going to:

• rewrite this without the new dependency
• update the docs to point to this script (just noticed I had forgotten)

I'll do this by the end of the day Wednesday, so it can be ready for @Elchi3 to try it again on the next release.

[ddbeck]

@Elchi3 I've undone adding a dependency (the resulting code isn't too gnarly, I hope) and updated the docs. Please give this a try on the next release. Thank you!

[ddbeck]

Oh yeah to address the earlier question: yes, I kinda think we should have a utils folder (or maybe meta or project or something like that?), but I think we ought to do that in a separate PR.

[ExE-Boss]

Or maybe a scripts or a bin directory.

[Elchi3]

I've tried this yesterday and it worked flawlessly. I'm glancing over it again now, but I think it is all good :)

I like the idea of a scripts/ directory. render.js should live there as well. Maybe more in the future.

[Elchi3]

Approving and merging this. 🎉