JsonParser needs to have a way to get current event (#303)

Signed-off-by: Jorge Bescos Gascon <jorge.bescos.gascon@oracle.com>

Author: jbescos

api/src/main/java/jakarta/json/stream/JsonParser.java

@@ -252,6 +252,17 @@ enum Event {
      */
     Event next();
 
+    /**
+     * Returns the event for the current parsing state.
+     *
+     * @return the event for the current parsing state
+     *
+     * @since 2.1
+     */
+    default public Event currentEvent() {
+        throw new UnsupportedOperationException();
+    }
+
     /**
      * Returns a {@code String} for the name in a name/value pair,
      * for a string value or a number value. This method should only be called