add namedPlaceholders option to QueryOptions interface

Author: philsch

typings/mysql/lib/protocol/sequences/Query.d.ts

@@ -16,6 +16,11 @@ declare namespace Query {
          */
         values?: any | any[] | { [param: string]: any };
 
+        /**
+         * This overrides the namedPlaceholders option set at the connection level.
+         */
+        namedPlaceholders?: boolean;
+
         /**
          * Every operation takes an optional inactivity timeout option. This allows you to specify appropriate timeouts for
          * operations. It is important to note that these timeouts are not part of the MySQL protocol, and rather timeout
@@ -54,7 +59,7 @@ declare namespace Query {
 
         /**
          * This overrides the same option set at the connection level.
-         * 
+         *
          */
         rowsAsArray?: boolean
     }