produce pom.xml without non-maven-jar packaging

[paulvi]

There is use case when 3rd party jar depends on open-source components, so we added dependency within pom.xml

Then however looking at pom.xml file deployed to local maven repository, it is clear that the composed pom.xml is deployed, that has <packaging>non-maven-jar</packaging>

That means we will need this plugin to bring as well if we just want to use non-maven-jar in other project.

I think it would be better to produce pom.xml more like it should be, if created by jar authors.