Create a dedicated Maven plug-in

[echebbi]

I believe that it would be great to dispose of a dedicated Maven plug-in instead of having to copy/paste/adapt the scripts. We could thus create a composite repository and publish it on Bintray with something like that:

<plugin>
    <artifactId>publish-composite-p2-bintray</artifactId>
    <configuration>
        <bintrayUser>${bintray.user}</bintrayUser>
        <bintrayApiKey>${bintray.apiKey}</bintrayApiKey>
        <bintrayRepository>${bintray.repo}</bintrayRepository>
    </configuration>
</plugin>

I have never created such a Maven plug-in so I don't know if it is worth the effort, but I think that it would be convenient.

This plug-in is likely not in the scope of this repository, but hopefully someone will see this issue and start to work on it.