Add Jenkins Checkstyle plugin to show info when checkstyle fails the build#25754

OndroMih wants to merge 2 commits intoeclipse-ee4j:mastereclipse-ee4j/glassfish:masterfrom

OndroMih:ondromih-jenkins-checkstyleOndroMih/glassfish:ondromih-jenkins-checkstyleCopy head branch name to clipboard