Added fix to add independent competences to VISTOMS.

Former-commit-id: 5992b4d2d983122830750bb89fc9c2f121163d90

kadmos/graph/mixin_vispack.py

@@ -419,6 +419,12 @@ class VistomsMixin(object):
         full_graph['attributes']['variables'] = list(set(full_graph['attributes']['variables']))
         full_graph[coordinator_str] = list(set(full_graph[coordinator_str]))
 
+        # Add holes in the graph as source functions
+        hole_functions = self.find_all_nodes(category='function', subcategory='independent')
+        for hole in hole_functions:
+            full_graph[hole] = []
+            full_graph['attributes']['tools'].append(hole)
+
         # Write log output
         logger.debug('Successfully created full_graph_data dictionary.')