加入帮助页轮播框架未完善（实则一坨）

src/include/Tetris.h

@@ -221,6 +221,7 @@ extern bool suspendFlag;
 extern bool targetFlag;
 extern bool bgmEnabled;
 extern bool reviveAvailable;
+extern bool rogueDemoMode;
 extern int workRegion[20][10];
 extern Point point;
 extern Point target;
@@ -268,6 +269,10 @@ void Restart();
 void StartGameWithMode(int mode);
 void ReturnToMainMenu();
 void ReviveAfterVideo();
+void StartRogueSkillDemo();
+bool IsRogueSkillDemoMode();
+bool TickRogueSkillDemo();
+void AdvanceRogueSkillDemo();
 void SetFeedbackMessage(const TCHAR* title, const TCHAR* detail, int ticks);
 void OpenRulesScreen();
 void OpenCreditScreen();