hello-samza tutorial documentation for standalone

We need a short tutorial to demonstrate how to use samza standalone.

For the fluent API, we're going to create another wikipedia application that is as similar as possible to the original hello-samza job. This will allow readers to compare and contrast the APIs, understand how to migrate, etc. It might be worth using this same guiding principle for standalone, except the emphasis will be more on creating, deploying, scaling, etc for stream processors.