logic: Group nodes in inheritance graph who have the same base and derived nodes (issue #459)

* added graph node for grouping nodes with separate sub-layout
* group nodes show name in top left corner
* clicking on single edge activates source locations of all edges
* removed separate setters for token components
* fixed text nodes missing or too many in list layout
* moved simple row and column layouts to ListLayouter
* added skewed layout type to ListLayouter

fortune cookie message = Sometimes you should have the courage and risk something.

src/lib_gui/qt/view/graphElements/QtGraphEdge.cpp

@@ -6,6 +6,7 @@
 #include "component/view/GraphViewStyle.h"
 #include "data/graph/Edge.h"
 #include "data/graph/token_component/TokenComponentAggregation.h"
+#include "data/graph/token_component/TokenComponentEdgeIds.h"
 #include "data/graph/token_component/TokenComponentInheritanceChain.h"
 #include "qt/graphics/QtLineItemAngled.h"
 #include "qt/graphics/QtLineItemBezier.h"
@@ -251,8 +252,11 @@ void QtGraphEdge::onClick()
 {
 	if (isTrailEdge())
 	{
+		TokenComponentEdgeIds* componentEdgeIds = getData()->getComponent<TokenComponentEdgeIds>();
+		std::vector<Id> ids = { getData()->getId() };
+
 		MessageActivateTrailEdge(
-			getData()->getId(),
+			componentEdgeIds ? componentEdgeIds->edgeIds : ids,
 			getData()->getType(),
 			getData()->getFrom()->getNameHierarchy(),
 			getData()->getTo()->getNameHierarchy()