Borderless window on macos
Is it any way to create a borderless window in macOS using nimx? (`styleMask: .borderless`)
Something like this:
![Screen-Shot-2020-12-10-at-17 08 08](https://user-images.githubusercontent.com/10536579/106945929-7d6ca100-6739-11eb-8a9f-e5026fae81da.png)
Maybe some AppKit-only solution?
