Create Hello World tutorial scene

Assets/Scripts/HelloWorld.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class HelloWorld : MonoBehaviour
+{
+    // Start is called before the first frame update
+    void Start()
+    {
+        Debug.Log("Hello World!");
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        
+    }
+}

Assets/Scripts/HelloWorld.cs.meta

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