Example of a 'naive' approach to networking

This builds on the previous NetworkBasePlus example and adds a real (simple) game where people can login and fly around in space ships.

This sample uses a naive approach to networking where object updates are just blasted directly out to all other players. There is no frame interpolation or any of that.

Also, it avoids using an ES but the code suffers greatly for this. Much would have been simpler with an ES in place but I worry it would obscure what I'm trying to ultimately illustrate.

As before:

• sim-eth-basic.zip contains a "ready to run" version of just the base example at the point of this release.
• sim-eth-bacis-sources.zip contains the build files, assets, and source files necessary to cut-paste into your own base game.