Configure gitlab-ci.yml to build on every commit
Summary
Gitlab has built in functionality to "build" a project on every commit pushed to the site. This will allow us to ensure that whats-open is still functional when pushed to gitlab and will allow us in the future to run testing and generate a report on test coverage. To enable this, a new file gitlab-ci.yml needs to be added to the root directory with some configuration to get things going. There are examples from other projects that you can pull from and basically modify slightly to make things work.