title: Jenkins Job DSL Plugin - Include another Jenkinsfile
body: <p>I want to build a Common Jenkinsfile for a couple of Build Jobs in different languages. And then I want to add a specific Jenkinsfile that depends on some parameters.</p>
  
  <p>For example: the common file should contain information about Docker Hub and Nexus Repository. It's always the same. And the specific file should contain language specific build steps.</p>
  
  <p>Is it possible to "include" another file?</p>