Create GitHub Actions Workflow for CI
Create GitHub Actions Workflow for CI

The Actions offering is quite compelling compared to Travis CI and
Appveyor, especially with the upcoming changes to Travis.

Signed-off-by: Kevin Locke <ffb4761cba839470133bee36aeb139f58d7dbaa9@kevinlocke.name>

kevinoid/appveyor-status,kevinoid/node-project-template,kevinoid/git-branch-is,kevinoid/appveyor-status,kevinoid/node-project-template,kevinoid/node-project-template,kevinoid/stream-compare,kevinoid/stream-compare,kevinoid/appveyor-status,kevinoid/stream-compare,kevinoid/promised-read,kevinoid/swagger-spec-validator,kevinoid/promised-read,kevinoid/git-branch-is,kevinoid/swagger-spec-validator,kevinoid/swagger-spec-validator,kevinoid/travis-status,kevinoid/promised-read,kevinoid/travis-status,kevinoid/travis-status,kevinoid/git-branch-is