Better automate releases for this repo

[emostov]

Now that this repo uses yarn 2, the publish command no longer exists and npm publish does not do the extra work like incrementing the version in the package.json and creating tags. It would be nice to have a simply way to automate those few steps.

[emostov]

I still think #31 is relevant since that is for api-sidecar and I think should do a bit more (i.e. changelog generation). Although we could make everything have the same release process as well