feat: 添加ElaWidgetTool库

ElaWidgetTools/private/ElaToolBarPrivate.h

@@ -0,0 +1,20 @@
+#ifndef ELATOOLBARPRIVATE_H
+#define ELATOOLBARPRIVATE_H
+#include <QObject>
+
+#include "ElaDef.h"
+class ElaToolBar;
+class ElaToolBarPrivate : public QObject
+{
+    Q_OBJECT
+    Q_D_CREATE(ElaToolBar)
+public:
+    explicit ElaToolBarPrivate(QObject* parent = nullptr);
+    ~ElaToolBarPrivate();
+
+private:
+    ElaThemeType::ThemeMode _themeMode;
+    int _shadowBorderWidth{6};
+};
+
+#endif // ELATOOLBARPRIVATE_H