add GitHub Codespaces and Visual Studio Codespaces

[benatkin]

https://github.com/features/codespaces/

https://devblogs.microsoft.com/visualstudio/introducing-visual-studio-codespaces/

[styfle]

Thanks! I'll need to get early access to verify this meets the criteria.

We don't currently have anything in the list that is invite only.

[viveksh1]

@styfle Can you please add Visual Studio Codespaces?

[styfle]

I'm unable to use it so I can't verify the features

[viveksh1]

@styfle Github Codespaces is in beta, but you should have access to Visual Studio Codespaces.

[viveksh1]

I also can't access any of them, I'll wait until they're released.