REPORT-61267 【FR11】【组件背景分离】组件复用-组件标题图案的“图案相对位置”切换不生效了，只有在重新上传图案的时候才生效；“位置”也不生效

【问题原因】
UIButtonGroup在点击控件时会触发多次内部ToggleButton的fireStateChange，所以需要在所有按钮内部状态改变时，
统一只触发一次fireStateChange. UIButtonGroup也需要实现UIObserver接口，否则外部不会挂载监听器，导致
不生效。

【改动思路】
同上

designer-base/src/main/java/com/fr/design/gui/ibutton/UIButtonGroup.java

@@ -3,6 +3,8 @@ package com.fr.design.gui.ibutton;
 import com.fr.design.constants.UIConstants;
 import com.fr.design.event.GlobalNameListener;
 import com.fr.design.event.GlobalNameObserver;
+import com.fr.design.event.UIObserver;
+import com.fr.design.event.UIObserverListener;
 import com.fr.design.utils.gui.UIComponentUtils;
 import com.fr.stable.ArrayUtils;
 import com.fr.stable.StringUtils;
@@ -24,7 +26,7 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
-public class UIButtonGroup<T> extends JPanel implements GlobalNameObserver {
+public class UIButtonGroup<T> extends JPanel implements GlobalNameObserver, UIObserver {
     private static final long serialVersionUID = 1L;
     private static final int TEXT_LENGTH = 3;
     private static final int BUTTON_SIZE = 2;
@@ -37,6 +39,7 @@ public class UIButtonGroup<T> extends JPanel implements GlobalNameObserver {
     private boolean isToolBarComponent = false;
     private boolean isClick;
 
+    private UIObserverListener uiObserverListener;
     private boolean autoFireStateChanged = true;
 
     public UIButtonGroup(String[] textArray) {
@@ -326,6 +329,9 @@ public class UIButtonGroup<T> extends JPanel implements GlobalNameObserver {
                 ((ChangeListener) listeners[i + 1]).stateChanged(e);
             }
         }
+        if (uiObserverListener != null) {
+            uiObserverListener.doChange();
+        }
     }
 
     /**
@@ -368,6 +374,16 @@ public class UIButtonGroup<T> extends JPanel implements GlobalNameObserver {
         return true;
     }
 
+    @Override
+    public void registerChangeListener(UIObserverListener listener) {
+        this.uiObserverListener = listener;
+    }
+
+    @Override
+    public boolean shouldResponseChangeListener() {
+        return true;
+    }
+
 
     /**
      * @param l