headless mobius

[phtj]

Create a new repo that will be a headless version of mobius

This will be a version that executes the flowcharts using nodejs, not the browser

There would be an execute(flowchart) function

The return value from executing a flowchart would be { print=..., return_value= ..., data=... }

• print is the text that is printed to the console (may be undefined)
• return_value is the value returned by the end node (may be undefined)
• data is the data that is in end node

The code would be similar to the grader, but just without the grading part

The code should be published on npm

The "save as js" function in mobius should "require" the mobius headless npm