新增sql连接，目前支持mysql、sqlite、oracle连接以及相关数据库操作

3rd/ElaWidgetTools/include/ElaTreeView.h

@@ -0,0 +1,20 @@
+#ifndef ELATREEVIEW_H
+#define ELATREEVIEW_H
+
+#include <QTreeView>
+
+#include "ElaProperty.h"
+
+class ElaTreeViewPrivate;
+class ELA_EXPORT ElaTreeView : public QTreeView
+{
+    Q_OBJECT
+    Q_Q_CREATE(ElaTreeView)
+    Q_PROPERTY_CREATE_Q_H(int, ItemHeight)
+    Q_PROPERTY_CREATE_Q_H(int, HeaderMargin)
+public:
+    explicit ElaTreeView(QWidget* parent = nullptr);
+    ~ElaTreeView();
+};
+
+#endif // ELATREEVIEW_H