加入SpkAbout（无内容）

inc/spkabout.h

@@ -1,11 +1,21 @@
 
 #pragma once
 
+#include <QLabel>
+#include <QPushButton>
+#include <QHBoxLayout>
 #include "spkdialog.h"
 
 class SpkAbout : public SpkDialog
 {
   public:
     SpkAbout(QWidget* parent = nullptr);
-    void Show();
+    ~SpkAbout();
+    static void Show();
+
+  private:
+    QHBoxLayout *mIconLay;
+    QLabel *mSpkIcon;
+    QLabel *mSpkVersion;
+    QLabel *mDescriptionText;
 };