The VNFD can be implemented as a single file or as a collection of
multiple files. If the VNFD is implemented in the form of multiple
files, a ZIP file embedding these files shall be returned. If the VNFD
is implemented as a single file, either that file or a ZIP file
embedding that file shall be returned.
Implemented below API:-
* GET /vnf_packages/{vnfPkgId}/vnfd
Change-Id: I4af9c8126fb7478da294bc99a176eabba3944564
Implements: bp enhance-vnf-package-support-part1
f03b615bfe