Chiχ Flow to FBPX
Converts a graph in json format to .fbp format.
Used by fbpx for the reverse option.
Usage:
$ fbpx -r flow.json | fbpx -j | \
fbpx -r | fbpx -j | fbpx -r | \
fbpx -j | fbpx -r | fbpx -j | \
fbpx -r | fbpx -j | fbpx -r > flow.fbp