Added GitHub actions

[oxisto]

I have added a simple GitHub actions file. I have intentionally left the go module path as the original package name for now - knowing that this needs to change.

This is basically just to see that everything works.

Closes #2

[mfridman]

lgtm.

Let's create a separate issue to figure out how to properly add module support.

EDIT: created issue #5 to track adding module support

[lggomez]

LGTM. Let's see this in action with the other PRs 👍

I want to see linting as well but I will fill a separate issue for that