CI build using GitHub Actions

[Dahlgren]

Build for Linux (Ubuntu), macOS and Windows

Saves archive with built application per platform

[Dahlgren]

Example build https://github.com/Dahlgren/OnHubDesktop/actions/runs/192504430

[AngeloD2022]

Thank you so much for the binaries! I've been having difficulty deploying it. I will take a look in a bit!

[AngeloD2022]

Okay, so I found an issue. I think you may need to include the libraries/frameworks for each platform's binary. It gives me an error because of this.

[Dahlgren]

Added bundling of QT dependencies on macOS and Windows. There's is a third party vendoring tool for Linux that can do the same there but I'd assume Linux users rather use their shared QT dependencies managed by the system

https://github.com/Dahlgren/OnHubDesktop/actions/runs/212665064.

[AngeloD2022]

Nice, thank you! And this will add build and other related checks to each merge, right? I'm new to GitHub Actions.

[Dahlgren]

Correct, it will run for all pushes and all pull requests

[Dahlgren]

The Windows client seem to crash for me but I don't have a Google WiFi setup to test with atm

[AngeloD2022]

I will merge this when I get the chance to test it. Thank you!