Better actions

[thecsw]

This update to actions will run matrix (parallel) jobs for go 1.18 and go 1.19 with:

• Fail if code is not properly formatted with gofmt
• Run tests and publish artifacts
• Run cover tests and publish html output

The artifacts (.html and .json) files of tests can be found at the bottom of the action's Summary page.

[matthewsanetra]

Is there any way we could get to see coverage, coverage improvements, etc. directly in a PR without having to manually look at the log in Actions?

[thecsw]

@matthewsanetra Updated to use coveralls, here is our coveralls page -> https://coveralls.io/github/thecsw/gana

[matthewsanetra]

LGTM!