Adding Jenkinsfile based on script in Jenkins Change-Id: I1a0838b0965c3b0b0c7981e1bfd7be89c6bad92d Reviewed-on: https://git.eclipse.org/r/c/linuxtools/org.eclipse.linuxtools.eclipse-build/+/187564 Tested-by: Alexander Kurtakov <akurtako@redhat.com> Reviewed-by: Alexander Kurtakov <akurtako@redhat.com>