Added TestScript for explanation of functionality

UOP1_Project/Assets/Scripts/SaveSystem/Save.cs

 /// </summary>
 [System.Serializable]
 public class Save {
-	
+	// This is test data, written accodring to TestScript.cs class
+	// This will change according to whatever data that needs to be stored
+
+	// The variables need to be public, else we would have to write trivial getter/setter functions.
+
+	public int _testInteger = default;
+	public float _testFloat = default;
+	public bool _testBool = default;
 }

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UOP1_Project/Assets/Scripts/SaveSystem/TestScript/TestScript.cs

+using System.Collections.Generic;
+using UnityEngine;
+
+/// <summary>
+/// A test script showing usage of the save system.<br/>
+/// This code corresponds to the code written in <see cref="Save"/> class.<br/>
+/// Unfortunately, inspite of all my efforts, I wasn't able to remove all dependencies. 
+/// </summary>
+public class TestScript : MonoBehaviour, ISaveable
+{
+	int _testInteger = default;
+	float _testFloat = default;
+	bool _testBool = default;
+
+	private void OnEnable()
+	{
+		// This is necessary, otherwise the object won't get added to registry of objects which needs to be serialized
+		SaveSystem.AddToRegistry += AddToSaveRegistry;
+	}
+
+	private void OnDisable()
+	{
+		SaveSystem.AddToRegistry -= AddToSaveRegistry;
+	}
+
+	public void AddToSaveRegistry(HashSet<ISaveable> registry)
+	{
+		registry.Add(this);
+	}
+
+	public void Serialize(Save saveFile)
+	{
+		saveFile._testInteger = _testInteger;
+		saveFile._testFloat = _testFloat;
+		saveFile._testBool = _testBool;
+	}
+
+	public void Deserialize(Save saveFile)
+	{
+		_testInteger = saveFile._testInteger;
+		_testFloat = saveFile._testFloat;
+		_testBool = saveFile._testBool;
+	}
+}

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