ci: add workflow to build Edit

[ankddev]

Since #189 added some CI/CD to publish Edit to WinGet, I think that workflow which will build Edit on each commit and PR will be useful.

• It will show any build errors and prevent merging of PRs that breaks something
• Optionally it can also upload artifacts and allow people try latest builds without building it

It can be Azure Pipeline or GitHub Action. Would be nice if it will build on multiple platforms, not only Windows. If this sounds reasonable, I can try to implement it myself.

[lhecker]

Thank you for the offer of writing the CI script! I'd like to try doing this myself though, as I already had a CI script before I switched to Azure for the official builds.