Add Fluid Distributed Interface demonstration sim

[jasonlharvey]

Per discussion with Zack, I'm going to submit a pull request to add a Fluid Distributed Interface demonstration sim.

[ezcrues]

Thanks @jasonlharvey ! We'll pull this into a feature branch to check out and then merge it into develop.

This should be another great example.

[ezcrues]

Done! Everything should be checked in a good to go in the 'development' branch. We'll merge into the 'master' branch in the near future. We have some other outstanding issues in work.