Add support for FBP protocol

[bergie]

Adding FBP Protocol support for this runtime would enable lots of tooling, like:

• noflo-ui / Flowhub for visual programming
• fbp-spec for data-driven test automation

The protoflo repo provides an example on how to implement the FBP Protocol in Python.

Once you have FBP Protocol in, we can add info about this project + potential downloadable example projects via a runtimeinfo file in Flowhub.

[baffelli]

Thanks for the suggestion, thats really interesting. I'm afraid It will take a while before I will be able to implement it, especially w.r.t the way I define ports compared to regular FBP. I must first understand if my definition of ArrayPort matches the commonly used one.