update on refusal graphs

src/main/java/myutil/BoolExpressionEvaluator.java

src/main/java/ui/MainGUI.java

src/main/java/ui/graph/AUTGraph.java

src/main/java/ui/graph/RG.java

src/main/java/ui/tree/JDiagramTree.java

src/main/java/ui/window/JFrameRefusalGraph.java