Add nightly builds

[kpalang]

Add nightly builds of OIE

[jonbartels]

The scope of #3 is to make tarballs and zips

The scope of #11 is java support.

Neither requires nightly builds.

Why not run builds on every merge to main. That way downloadable artifacts for the latest changes exist. Daily builds could add noise if we are not committing daily. Daily builds could miss changes if the team has a busy day.

[tonygermano]

I think I agree with @jonbartels that this probably isn't necessary since the automated builds were already running on every PR and push to main. I think the exception would be if the nightly tarballs could be published to a static link, so the url for the latest nightly never changed. Probably not worth the time to work on that at the moment since people can still grab the build with the latest changes from GH if they want it.

[kpalang]

Good points. Closing this PR.