FELIX-284 Add Management API
   - moved implementation and parser down into an impl package
   - defined the API in the main scr package
   - added Felix Shell Command "scr"
   - fixed exports

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@597657 13f79535-47bb-0310-9956-ffa450edef68
27 files changed