Added GameplaySO to be able to create gameplay scene

UOP1_Project/Assets/Scripts/SceneManagement/ScriptableObjects/GameplaySO.cs

+using UnityEngine;
+
+/// <summary>
+/// This class contains Settings specific to Gameplay scenes only
+/// </summary>
+
+[CreateAssetMenu(fileName = "NewGameplayScene", menuName = "Scene Data/Gameplay")]
+
+public class GameplaySO : GameSceneSO
+{
+	//[Header("Gameplay specific")]
+}

UOP1_Project/Assets/Scripts/SceneManagement/ScriptableObjects/GameplaySO.cs.meta

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