Optional playground support

[uraimo]

Adding a playground to a project generated with SwiftPlate is a bit convoluted, you need to wrap it in a workspace and then create and register in the plist an empty umbrella c header (that swiftplate normally doesn't include).

It would be nice to have all this done automatically when creating the project, if someone else is interested i could implement it.

[JohnSundell]

Sounds great to me! 👍 You don't really need the umbrella C header for a pure Swift project though, right?

[uraimo]

You don't really need the umbrella C header for a pure Swift project though, right?

Correct, you need it only if you want to export something to objective-c, and for some mysterious reason to use the framework inside playgrounds.

So, i think we could have both the workspace and the header in the template and then remove them if the user doesn't care about playground support, better than generating them via code or having a separate branch with this additional stuff.

[agisilaos]

Yup I'm super interested in that feature! @uraimo!

[uraimo]

@agisilaos it's in my TODO list, will have time for this soon.