Automate release process

[lorensr]

• Add release script
• npx sort-package-json
• Update .vscodeignore

[bergundy]

Would be great if we created a GH release or at least a tag on auto publish. How are we planning on doing that?

[lorensr]

npm version tags & pushes

Marketplace only supports changelog file, not GH releases, and didn't think it was important to mirror changelog -> GH releases.