Disable BackfaceCulling by default

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/Renderer.java

@@ -24,7 +24,7 @@ public class Renderer {
     private TriangulatedGeometry currentTriGeom;
     private Geometry currentGeometry;
 
-    private CullFace currentCulling = CullFace.BACK;
+    private CullFace currentCulling = CullFace.NONE;
     private DrawMode currentDrawMode = DrawMode.FILL;
 
     private MainWindow mainWindow;

CityDoctorParent/Extensions/CityDoctorGUI/src/main/resources/de/hft/stuttgart/citydoctor2/gui/MainToolBar.fxml

 <?xml version="1.0" encoding="UTF-8"?>
 
 <?import javafx.geometry.Insets?>
-<?import javafx.scene.control.Button?>
-<?import javafx.scene.control.Separator?>
-<?import javafx.scene.control.ToggleButton?>
-<?import javafx.scene.image.ImageView?>
-<?import javafx.scene.layout.HBox?>
-
+<?import javafx.scene.control.*?>
+<?import javafx.scene.image.*?>
+<?import javafx.scene.layout.*?>
 <HBox maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" spacing="5.0" xmlns="http://javafx.com/javafx/22" xmlns:fx="http://javafx.com/fxml/1">
    <children>
       <HBox spacing="5.0" HBox.hgrow="NEVER">
@@ -31,7 +28,7 @@
                   <ImageView fx:id="gridImageView" fitHeight="32.0" fitWidth="32.0" pickOnBounds="true" preserveRatio="true" />
                </graphic>
             </ToggleButton>
-            <ToggleButton fx:id="cullingButton" disable="true" mnemonicParsing="false" selected="true">
+            <ToggleButton fx:id="cullingButton" disable="true" mnemonicParsing="false">
                <graphic>
                   <ImageView fx:id="cullingImageView" fitHeight="32.0" fitWidth="32.0" pickOnBounds="true" preserveRatio="true" />
                </graphic>