FELIX-4631 : [DS][R6/RFC212] Implement field injection. WiP

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1637751 13f79535-47bb-0310-9956-ffa450edef68
FELIX-4631 : [DS][R6/RFC212] Implement field injection. WiP

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1637753 13f79535-47bb-0310-9956-ffa450edef68