add ldapgroup mapping UI part

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1450733 13f79535-47bb-0310-9956-ffa450edef68
move fields on top of the class

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1450734 13f79535-47bb-0310-9956-ffa450edef68