NS1 Yaml descriptor

nsd:nsd-catalog:

   nsd:nsd:
   -   nsd:constituent-vnfd:
       -   nsd:member-vnf-index: '1'
           nsd:start-by-default: 'true'
           nsd:vnfd-id-ref: d6c25720-895a-40a2-b303-b2a98d10674c
       -   nsd:member-vnf-index: '2'
           nsd:vnfd-id-ref: 287671e2-2858-48cf-a13c-b4cb1351aa9f
       nsd:description: Reference NS 1
       nsd:id: 9b684262-ded5-4d43-82d3-5e2bf69b7446
       nsd:name: Ref_NS_1
       nsd:vendor: ETSI
       nsd:vld:
       -   nsd:description: Mgmt VL
           nsd:id: 54c04
           nsd:name: VL1
           nsd:short-name: VL1
           nsd:type: ELAN
           nsd:vendor: ETSI
           nsd:vnfd-connection-point-ref:
           -   nsd:member-vnf-index-ref: '1'
               nsd:vnfd-connection-point-ref: mgmt
               nsd:vnfd-id-ref: d6c25720-895a-40a2-b303-b2a98d10674c
           -   nsd:member-vnf-index-ref: '2'
               nsd:vnfd-connection-point-ref: mgmt0
               nsd:vnfd-id-ref: 287671e2-2858-48cf-a13c-b4cb1351aa9f