data/logic/ui: added aggregation edges

This change adds the creation of aggregation edges to the StorageGraph, which save the connection counts between
children in their parents. Aggregation edges are displayed using a straight line, that is thicker than more connections
it represents with the connection count in the middle.

src/lib/component/view/graphElements/GraphNode.h

@@ -52,6 +52,7 @@ struct DummyNode
 		, accessType(TokenComponentAccess::ACCESS_NONE)
 		, active(false)
 		, connected(false)
+		, aggregated(false)
 		, expanded(false)
 		, invisibleSubNodeCount(0)
 		, visible(false)
@@ -63,6 +64,7 @@ struct DummyNode
 		, accessType(accessType)
 		, active(false)
 		, connected(false)
+		, aggregated(false)
 		, expanded(false)
 		, invisibleSubNodeCount(0)
 		, visible(false)
@@ -77,6 +79,7 @@ struct DummyNode
 
 	bool active;
 	bool connected;
+	bool aggregated;
 
 	bool expanded;
 	size_t invisibleSubNodeCount;