copy arraylistdemo for linked list

c_os/user/demo/LinkedListDemo.h

@@ -0,0 +1,22 @@
+#ifndef __LinkedListDemo_include__
+#define __LinkedListDemo_include__
+
+#include "kernel/Globals.h"
+#include "kernel/threads/Thread.h"
+#include "user/lib/LinkedList.h"
+
+class LinkedListDemo : public Thread {
+private:
+    LinkedListDemo(const LinkedListDemo& copy) = delete;
+
+    LinkedList<int> list;
+
+public:
+    LinkedListDemo() {
+        kout << "Initialized LinkedListDemo" << endl;
+    }
+
+    void run() override;
+};
+
+#endif