This commit also prepends ndn-tools license boilerplate,
and adds version string to ndndump.
refs #2692
Change-Id: I0b00157f79ba04109682db8e8372fe40d00b7fb2
Code is copied from ndndump:commit:c266031924d723b9a73be29ebb66fd6db26aade5,
with minor changes for removing trailing whitespaces.
Build script is rewritten.
refs #2692
Change-Id: I07eec2f87542f1328b851cc2c4e5c9b6279db7da