We should modify the code in dffml/cli/dataflow.py within the Diagram class to not show operation.inputs which have default values. It makes for giant diagrams sometimes. We should provide an option to show them again

AC:

• Added example to CI pipeline

Allowing blueprints to export themselves as a single function decreases the friction of development.

Use case:

Blueprint = function(...) {
}

Internally:

if (typeof Blueprint === 'function')
  Blueprint = { name: Blueprint.name,  in: Blueprint }