ciao-vendor: Add COPYING to the list of vendored documents
ciao-vendor: Add COPYING to the list of vendored documents

ciao-vendor was not including the COPYING file in the set of vendored files.
This meant that some vendored libraries were missing their license.

Signed-off-by: Mark Ryan <f16215f7acd0bd7fdc465539215bd574c785b062@intel.com>

ciao-project/ciao,kaccardi/ciao,ciao-project/ciao,01org/ciao,kaccardi/ciao,01org/ciao