Access enqueue_time in advanced queue messages

[lordvlad]

1. Describe your new request in detail

I need to access enqueue_time.
AdvancedQueueMessage only has a delay property, but it is always 0 for some reason.
In the java libs we have AQMessageProperty.getEnqueueTime().

2. Give supporting information about tools and operating systems. Give relevant product version numbers

Using nodejs 23, windows 11

[cjbj]

If I read python-oracledb correctly, this is exposed via ODPI-C as dpiMsgProps_getEnqTime, so exposing the functionality in node-oracledb would not be a huge effort.