Moving RDC taglib from jakarta taglibs sandbox to jakarta taglibs proper

git-svn-id: https://svn.apache.org/repos/asf/jakarta/taglibs/proper/rdc/trunk@226369 13f79535-47bb-0310-9956-ffa450edef68
tree: 9af21ae2a3accb862c68ed7e4080a7b7f0fa96d6
  1. doc/
  2. examples/
  3. src/
  4. xml/
  5. build.xml
  6. README