update oasp4j to devon4j (build/create/deploy/run)

[vapadwal]

Devcon should able to generate Devon4j project.

It should build/create/deploy/run - Devon4j Project

[hohwille]

For some reason the sources for this are deployed on the devonfw homepage:
https://github.com/devonfw/devonfw.github.io/blob/master/download/devcon/version.json
Further they are designed/coded according to oasp4j.
IMHO we need to revisit this design.
Why is that not comming from the devcon repo itself? Creating a dependency on the github pages repo seems to be an unnecessary obstacle to me. Further, why do we reinvent the wheel here at all?

Going even further my suggestion would be to simply get the latest version from the maven repo. This would also allow a fallback on the cache from the local maven repo in case you are offline or have network issues but still would give you the latest version if you are properly connected even without any further requirement to change/adopt somewhere.

[hohwille]

We should first try to supply LATEST for the variable archetypeVersion. IMHO this would already do the trick and we have nothing to reinvent.