github actions ci/cd

[jftuga]

This PR allows GitHub Actions to use goreleaser to automatically build Release binaries for you.

Notes:

• This only occurs when a tag is created with a command set like:

CURRENT=1.0.1
git tag -a "v${CURRENT}" -m "releasing version ${CURRENT}"
git push origin "v${CURRENT}"

• This also creates a draft release which allows you to review it before publishing to a full release.