Add support for Swift

[BrendanThompson]

It would be good to have support for these comments in Swift.

[thedadams]

@BrendanThompson Thanks for requesting! PR is up: zed-extensions/swift#43

[BrendanThompson]

Hah beat me to it @thedadams ! I just forked the repo to do it 😃

[thedadams]

Oh, sorry. Didn't mean to step on your toes there.

[BrendanThompson]

Not at all dood! I'm just happy we will have support. And thanks so much for making this all come together too. Incredible work!

[thedadams]

The PR is merged. They still need to release a new version of the extension, but that I outside of our control.

Closing because our part is complete.