Integrate a Java Spring Boot server

[kylecordes]

Initially all of the code in this example runs on Node.

But many enterprise projects, including many that we work on at work, have either a monolithic or micro-service architecture or some or all of the server code is not Node at all.

Therefore, an idea:

Demonstrate with another server included in this example, how non-node code can be integrated. For example, stand up a simple example REST server using Spring Boot (Java). Such a server can be coded in something like 10 minutes (not counting time waiting for Maven...) and would make the example more useful for people working in multiplatform environments.