While we have a complete list of dictionaries elements, include a nice graph to show what a mess it is

Finally found some definitive reference of the content of the dictionaries module, update figures accordingly (had forgotten two elements, dictScrap and subc, doesn't seem to change anything on the analysis performed but recomputing all inclusions paths just to be sure)

Add development about the graph approach used to explore XML-TEI and start developing the encoding scheme we propose