[Enhancement](storage) add a new hidden column __DORIS_VERSION_COL__ for unique key table (#16509)

fe/fe-common/src/main/java/org/apache/doris/common/Config.java

@@ -1410,6 +1410,12 @@ public class Config extends ConfigBase {
     @ConfField(mutable = true, masterOnly = true)
     public static boolean enable_batch_delete_by_default = true;
 
+    /**
+     * Whether to add a version column when create unique table
+     */
+    @ConfField(mutable = true, masterOnly = true)
+    public static boolean enable_hidden_version_column_by_default = true;
+
     /**
      * Used to set default db data quota bytes.
      */