Feat - Add open command

[corpooo]

This command would allow users to open an existing worktree inside their editor.

[juristr]

Any appetite for adding this one @johnlindquist? You can obviously easily manually switch to a worktree, but I was actually looking for something like "open" or "switch" (to be more git like)

[github-actions]

🎉 This PR is included in version 2.10.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[johnlindquist]

Any appetite for adding this one @johnlindquist? You can obviously easily manually switch to a worktree, but I was actually looking for something like "open" or "switch" (to be more git like)

I swear I never see pr notifications until someone posts a follow up comment. I need to check my settings...