CI job to build and publish jbds.target

JBDS uses different target-platforms than JBoss Tools, but consume it in the same way.
So jbds.target should also have a build/verify/publish job on Jenkins, similar to https://jenkins.mw.lab.eng.bos.redhat.com/hudson/view/DevStudio/view/DevStudio_Trunk/job/jbosstools-4.0_trunk.target-platforms/