Add support for running .fbp/.json/.drw files "on the fly"

[oleksandr]

Would be nice to be able to run network files which have the proper mapping of components to corresponding code directly from the command line:

java -cp target/fbp-1.0-SNAPSHOT.jar com.jpmorrsn.fbp.CLI ./path/to/DemoGraph.fbp

or

java -cp target/fbp-1.0-SNAPSHOT.jar com.jpmorrsn.fbp.CLI ./path/to/DemoGraph.json

or

java -cp target/fbp-1.0-SNAPSHOT.jar com.jpmorrsn.fbp.CLI ./path/to/DemoGraph.drw

[jonnor]

I implemented loading of .json in jonnor@4fb10ac#diff-d41d8cd98f00b204e9800998ecf8427e
Pullrequest for this and some other goodies upcoming :)

[oleksandr]

@jonnor Looks good. Would be nice to clarify the case with components library and avoid coupling JavaFBP with NoFlo's Flowhub's API and endpoint for obvious reasons.