Graphical: model.info file summarizing full graphical model

[Jammy2211]

We have model.info files which summarize an individual search or factor:

We need a model.info file which describes a full FactorGraphModel, expressing the shared parameters in the model alongside details of every individual factor of the graph.

• I anticipate that many sections of this file will effectively be the model.info file of every individual factor, output all in the same file for ease of inspection.

• For each of these sections of the model.info file describing individual factors, we should use the factor name (e.g. AnalysisFactor0) to be a section header.

• We need to think carefully how we express components of the model that share parameters (which will probably be towards the top of the file). For extremely complex graphical models, there may not be a clear way to do this. I guess it doesn't matter too much -- perhaps in order of number of nodes?