Changed Updatable to EditableAnywhere. Updated README with documentation for EditableAnywhere

Author: danloughmiller

README.md

@@ -130,7 +130,7 @@ private ParticleSystem[] _particles;
 - `ExcludeSelf` only affects `Parent` and `Child`, and determines whether components on this `GameObject` are included in the results. By default, components on this `GameObject` are included.
 - `Editable` only affects `Parent`, `Child` and `Scene`, and allows you to edit the resulting reference. This is useful, for example, if you have two children who would satisfy a reference but you want to manually select which reference is used. 
 - `Filter` allows you to implement custom logic to filter references. See **Filters** below.
-
+- `EditableAnywhere` has the same effect as `Editable` but will not validate the supplied reference. This allows you to manually specify a reference with an automatic fallback.
 ### Filters
 
 This project also provides support for filtering references based on custom logic. 

SceneRefAttribute.cs

@@ -65,7 +65,7 @@ public enum Flag
         /// <summary>
         /// Allows the user to manually set the reference and does not validate the location if manually set
         /// </summary>
-        Overridable = 1 << 4 | Editable
+        EditableAnywhere = 1 << 4 | Editable
     }
 
     /// <summary>

SceneRefAttributeValidator.cs

@@ -425,7 +425,7 @@ private static bool ValidateRef(SceneRefAttribute attr, Component c, FieldInfo f
         {
             Type fieldType = field.FieldType;
             bool isCollection = IsCollectionType(fieldType, out bool _, out bool _);
-            bool isOverridable = attr.HasFlags(Flag.Overridable);
+            bool isOverridable = attr.HasFlags(Flag.EditableAnywhere);
 
             if (value is ISerializableRef ser)
             {