Handle internal implementations better (nw)

SabreTools.Core/DictionaryBaseExtensions.cs

@@ -799,6 +799,26 @@ namespace SabreTools.Core
 
         #endregion
 
+        #region Reading
+
+        /// <summary>
+        /// Read an item array from a given key, if possible
+        /// </summary>
+        public static T[]? ReadItemArray<T>(this DictionaryBase self, string key) where T : DictionaryBase
+        {
+            var items = self.Read<T[]>(key);
+            if (items == default)
+            {
+                var single = self.Read<T>(key);
+                if (single != default)
+                    items = [single];
+            }
+
+            return items;
+        }
+
+        #endregion
+
         #region Suffix Generation
 
         /// <summary>