feat: 게임 인트로 씬 추가 작업

Gameton-06/Assets/Gameton/Scripts/GameData/IntroStoryData.cs

@@ -0,0 +1,14 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace TON
+{
+    [System.Serializable]
+    public class IntroStoryData
+    {
+        public int background;
+        public string speaker;
+        public string content;
+    }
+}