Moving the RDC taglib work over to Tomcat

git-svn-id: https://svn.apache.org/repos/asf/tomcat/taglibs/rdc/tags/rdc-100@804849 13f79535-47bb-0310-9956-ffa450edef68
tree: 9af21ae2a3accb862c68ed7e4080a7b7f0fa96d6
  1. doc/
  2. examples/
  3. src/
  4. xml/
  5. build.xml
  6. README