refs #100499 add Iterator interface to ContentName to access the components.
refs #100499 add Iterator interface to ContentName to access the components.

ebollens/ccnmp,cawka/ndnx,svartika/ccnx,cawka/ndnx,svartika/ccnx,ebollens/ccnmp,ebollens/ccnmp,cawka/ndnx,svartika/ccnx,svartika/ccnx,svartika/ccnx,svartika/ccnx,cawka/ndnx,ebollens/ccnmp,svartika/ccnx,cawka/ndnx