实现应用列表和SpkResource

SpkResource现有已知问题：首次使用不会完全进行所有任务。

inc/page/spkpagebase.h

@@ -0,0 +1,27 @@
+
+#pragma once
+
+#include <QScrollArea>
+#include <spkresource.h>
+
+class SpkPageBase : public QScrollArea
+{
+    Q_OBJECT
+  public:
+    SpkPageBase(QWidget *parent = nullptr);
+
+  public slots:
+    /**
+     * @brief This signal is emitted by resource manager when a resource acquisition requested
+     *        has finished.
+     * @param id The request ID
+     * @param result The data retrieved
+     */
+    virtual void ResourceAcquisitionFinished(int id, ResourceResult result);
+
+    /**
+     * @brief This is an optional signal for Resource Context objects, mainly used for notifying the
+     *        context that it is now activated (therefore it needs to acquire the resource manager).
+     */
+    virtual void Activated();
+};