Extend CALM CLI to Support Visualizing Business Flows

[LeighFinegold]

Feature Request:

Currently, CALM provides a command-line interface (CLI) tool that allows users to visualize nodes and relationships in an architectural specification. While this is valuable for understanding the technical architecture, it does not visualize business flows that traverse these components. Something that is now possible in CALM via #426.

Propose modifying the existing CLI to support the visualisation of business flows. This enhancement would allow users to input a separate flow specification file, enabling them to see how business processes interact with nodes and relationships in the architecture.

Potential solutions

1. Provide a visualize option where only the flow document is provided as input argument
   calm visualize -f flow.json

   In this solution, a flow definition has links back to the calm document which contains the references node/relationships.

2. Enhance the existing command to take a flow id which you want to visualise
   calm visualize -i calm.json -f "flow-001"

   This solution implies that calm.json has direct knowledge of all flows that are linked to it i.e. core.json would be updated to contain a flows array.

3. Specify both the calm.json alongside the flow.json document you want to visualise
   calm visualise -i calm.json -f flow.json