Generates an image of the dataflow graph of a given component generated by DSAGEN.
This tool requires Graphviz. Graphviz can be installed via pip install graphviz.
Invoke the script passing it the names of the JSON files representing each component.
As an example, to create DFGs for all components in mm_0_4_4.dfg.json, run ./create_dfg.py mm_0_4_4.dfg.json.