fix setrounding on windows

[lucaferranti]

No description provided.

[lucaferranti]

@dpsanders this is now ready for review! 🎉

I think at least a couple of actions should be taken

1. github actions workflows are not triggered here, I think you need to manually enable those from the Actions tab? For now, you can check the logs of github-actions from my fork
2. I think you will need to deactivare appveyor, similarly to what Luis Benet commented in the TaylorModels.jl and IntervalOptimisation.jl PR?

For the two above mentioned reasons, I haven't removed the appveyor and travis files yet, so that you can still check the results of the tests here.

Also, I have added the TagBot.yml and CompactHelper.yml, similarly to other packages, not sure whether they are needed here.