Add mutable objects, add sample

Author: Edvinas01

Runtime/MutableObjects.meta

@@ -0,0 +1,24 @@
+using System.Linq;
+using MutableObjects.Generic;
+using UnityEngine;
+
+namespace MutableObjects.Extensions
+{
+    public static class MutableObjectExtensions
+    {
+        /// <summary>
+        ///     Reset all mutable objects to their inspector state.
+        /// </summary>
+        public static void ResetMutatedObjects()
+        {
+            var mutableObjects = Resources
+                .FindObjectsOfTypeAll<MutableObject>()
+                .OfType<IMutableObject>();
+
+            foreach (var mutableObject in mutableObjects)
+            {
+                mutableObject.ResetValues();
+            }
+        }
+    }
+}

Runtime/MutableObjects/Extensions.meta

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+using MutableObjects.Generic;
+using UnityEngine;
+
+namespace MutableObjects.Float
+{
+    [CreateAssetMenu(fileName = "MutableFloat", menuName = "Mutable Objects/Mutable Float")]
+    public class MutableFloat : MutableObject
+    {
+        [SerializeField]
+        private float value = default;
+
+        public float Value { get; set; }
+
+        public override void ResetValues()
+        {
+            Value = value;
+        }
+    }
+}

Runtime/MutableObjects/Extensions/MutableObjectExtensions.cs

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+namespace MutableObjects.Generic
+{
+    public interface IMutableObject
+    {
+        /// <summary>
+        ///     Reset values on this mutable object to their original ones.
+        /// </summary>
+        void ResetValues();
+    }
+}