Create Integration Testing Pipeline

[WonderPanda]

As we continue to build out packages that integrate with third party systems and frameworks (eg RabbitMQ, Caching, etc) it's important to ensure that a proper integration test pipeline exists that actually utilizes nestjs-plus packages in a real environment. This will help to ensure that functionality works as intended and that there are no regressions as the codebase evolves.

This pipeline should be integrated with Docker Compose and be capable of running on Travis (or an equivalent CI) platform as part of normal builds and before new packages are released.