Filter recipe graph

[xsebek]

• add filter options to the recipe graph to cut down the noise

[xsebek]

Here are the new options:

Usage: swarm-docs recipes [--forward | --next]

  Output graphviz dotfile of entity dependencies based on recipes

Available options:
  --forward                Show only forward edges
  --next                   Show only edges to next group
  -h,--help                Show this help text

Comparison:

Filter	Result
None
Forward
Next