Standardizing JEP 343 with draft of new JEP - JDK-8247768: Packaging Tool (Standard)

[Andy Herrick]

The jpackage tool described in JEP 343 
(https://bugs.openjdk.java.net/browse/JDK-8200758) 
<https://bugs.openjdk.java.net/browse/JDK-8200758>.

This was delivered as an incubating tool in JDK 14, and again in JDK 15 
to allow more time for feedback.

At this time we have received and incorporated such feedback, would like 
to standardize this tool.

To that end we intend to submit: JDK-8247768: Packaging Tool (Standard) 
(https://bugs.openjdk.java.net/browse/JDK-8247768).

Please review and send feedback to core-libs-dev at openjdk.java.net.

/Andy