refactor: flatten app/ and util/ directory structure

targets/app/common/Tutorial/TutorialMessage.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <stdint.h>
+
+// The default number of times any message should be shown
+#define TUTORIAL_MESSAGE_DEFAULT_SHOW 3
+
+class TutorialMessage {
+private:
+    int messageId;
+    bool limitRepeats;
+    unsigned char numRepeats;
+    unsigned char timesShown;
+    uint32_t lastDisplayed;
+
+public:
+    TutorialMessage(int messageId, bool limitRepeats = false,
+                    unsigned char numRepeats = TUTORIAL_MESSAGE_DEFAULT_SHOW);
+
+    bool canDisplay();
+    const wchar_t* getMessageForDisplay();
+};