Add XR sample assets and update settings

Assets/Samples/XR Plugin Management/4.5.3/Example XR Management implementation/SampleSettings.cs

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+using UnityEngine;
+
+namespace Samples
+{
+    /// <summary>
+    /// Simple sample settings showing how to create custom configuration data for your package.
+    /// </summary>
+    // Uncomment below line to have the settings appear in unified settings.
+    //[XRConfigurationData("Sample Settings", SampleConstants.k_SettingsKey)]
+    [System.Serializable]
+    public class SampleSettings : ScriptableObject
+    {
+        #if !UNITY_EDITOR
+        /// <summary>Static instance that will hold the runtime asset instance we created in our build process.</summary>
+        /// <see cref="SampleBuildProcessor"/>
+        public static SampleSettings s_RuntimeInstance = null;
+        #endif
+
+        /// <summary>Requirement settings enumeration</summary>
+        public enum Requirement
+        {
+            /// <summary>Required</summary>
+            Required,
+            /// <summary>Optional</summary>
+            Optional,
+            /// <summary>None</summary>
+            None
+        }
+
+        [SerializeField, Tooltip("Changes item requirement.")]
+        Requirement m_RequiresItem;
+
+        /// <summary>Whether or not the item is required.</summary>
+        public Requirement requiresItem
+        {
+            get { return m_RequiresItem; }
+            set { m_RequiresItem = value; }
+        }
+
+        [SerializeField, Tooltip("Some toggle for runtime.")]
+        bool m_RuntimeToggle = true;
+
+        /// <summary>Where we toggled?</summary>
+        public bool runtimeToggle
+        {
+            get { return m_RuntimeToggle; }
+            set { m_RuntimeToggle = value; }
+        }
+
+        void Awake()
+        {
+            #if !UNITY_EDITOR
+            s_RuntimeInstance = this;
+            #endif
+        }
+    }
+}