Added nftables panels

src/main/java/gui/src/constants/GUIConstants.java

@@ -19,6 +19,8 @@ public final class GUIConstants {
     public static enum Panel {
         MonitoringPanel,
         ControllingPanel,
+        NFTableChainPanel,
+        NFTableRulePanel,
         ConnectToServerPanel,
         ConnectionsTablePanel
     }

src/main/java/gui/src/panels/ControllingPanel/NFTable/NFTablesChainPanel/NFTablesChainPanel.java

@@ -0,0 +1,12 @@
+/**
+ * @author Aaron Moser
+ * @date 30.12.2023
+ * @lastChange 30.12.2023
+ */
+package gui.src.panels.ControllingPanel.NFTable.NFTablesChainPanel;
+
+import javax.swing.JPanel;
+
+public class NFTablesChainPanel extends JPanel {
+    
+}

src/main/java/gui/src/panels/ControllingPanel/NFTable/NFTablesTablePanel/NFTablesTablePanel.java

@@ -0,0 +1,26 @@
+/**
+ * @author Aaron Moser
+ * @date 30.12.2023
+ * @lastChange 30.12.2023
+ */
+package gui.src.panels.ControllingPanel.NFTable.NFTablesTablePanel;
+
+import javax.swing.BoxLayout;
+import javax.swing.JPanel;
+
+public final class NFTablesTablePanel extends JPanel {
+    private static NFTablesTablePanel instance = null;
+
+    private NFTablesTablePanel() {
+        this.setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
+
+        
+    }
+
+    public static NFTablesTablePanel getInstance() {
+        if (instance == null) {
+            instance = new NFTablesTablePanel();
+        }
+        return instance;
+    }
+}