add packages with ipv6 profiles

ipv6profile_2vm_ns/ipprofile_2vm_nsd.yaml

+nsd:
+  nsd:
+  - description: NS with 1 VNFs connected by mgmtnet VL
+    df:
+    - id: default-df
+      vnf-profile:
+      - id: vnf
+        virtual-link-connectivity:
+        - constituent-cpd-id:
+          - constituent-base-element-id: vnf
+            constituent-cpd-id: vnf-mgmt-ext
+          virtual-link-profile-id: mgmtnet
+        vnfd-id: ipv6profile_2vm-vnf
+    id: ipv6profile_2vm-ns
+    name: ipv6profile_2vm-ns
+    version: 1.0
+    virtual-link-desc:
+    - id: mgmtnet
+      mgmt-network: true
+    vnfd-id:
+    - ipv6profile_2vm-vnf

ipv6profile_2vm_vnf/ipprofile_2vm_vnfd.yaml

+vnfd:
+  description: A VNF consisting of 2 VDUs connected to an internal VL
+  df:
+  - id: default-df
+    instantiation-level:
+    - id: default-instantiation-level
+      vdu-level:
+      - number-of-instances: 1
+        vdu-id: mgmtVM
+      - number-of-instances: 1
+        vdu-id: dataVM
+    vdu-profile:
+    - id: mgmtVM
+      min-number-of-instances: 1
+    - id: dataVM
+      min-number-of-instances: 1
+    virtual-link-profile:
+    - id: internal
+      flavour: 
+      virtual-link-protocol-data:
+        l3-protocol-data:
+          cidr: 2001:DB8::/64
+          ip-version: ipv6
+          gateway-ip: 2001:DB8::1
+          dhcp-enabled: true
+          ipv6-address-mode: dhcpv6-stateful
+  ext-cpd:
+  - id: vnf-mgmt-ext
+    int-cpd:
+      cpd: mgmtVM-eth0-int
+      vdu-id: mgmtVM
+  id: ipv6profile_2vm-vnf
+  int-virtual-link-desc:
+  - id: internal
+  mgmt-cp: vnf-mgmt-ext
+  product-name: ipv6profile_2vm-vnf
+  sw-image-desc:
+  - id: ubuntu20.04
+    image: ubuntu20.04
+    name: ubuntu20.04
+  - id: ubuntu20.04-azure
+    name: ubuntu20.04-azure
+    image: Canonical:0001-com-ubuntu-server-focal:20_04-lts:latest
+    vim-type: azure
+  - id: ubuntu20.04-gcp
+    name: ubuntu20.04-gcp
+    image: ubuntu-os-cloud:image-family:ubuntu-2004-lts
+    vim-type: gcp
+  vdu:
+  - id: mgmtVM
+    int-cpd:
+    - id: mgmtVM-eth0-int
+      virtual-network-interface-requirement:
+      - name: mgmtVM-eth0
+        position: 1
+        virtual-interface:
+          type: PARAVIRT
+    - id: mgmtVM-eth1-int
+      int-virtual-link-desc: internal
+      virtual-network-interface-requirement:
+      - name: mgmtVM-eth1
+        position: 2
+        virtual-interface:
+          type: PARAVIRT
+    name: mgmtVM
+    sw-image-desc: ubuntu20.04
+    alternative-sw-image-desc:
+    - ubuntu20.04-azure
+    - ubuntu20.04-gcp
+    virtual-compute-desc: mgmtVM-compute
+    virtual-storage-desc:
+    - mgmtVM-storage
+  - id: dataVM
+    int-cpd:
+    - id: dataVM-eth0-int
+      int-virtual-link-desc: internal
+      virtual-network-interface-requirement:
+      - name: dataVM-eth0
+        position: 1
+        virtual-interface:
+          type: PARAVIRT
+    name: dataVM
+    sw-image-desc: ubuntu20.04
+    alternative-sw-image-desc:
+    - ubuntu20.04-azure
+    - ubuntu20.04-gcp
+    virtual-compute-desc: dataVM-compute
+    virtual-storage-desc:
+    - dataVM-storage
+  version: 1.0
+  virtual-compute-desc:
+  - id: mgmtVM-compute
+    virtual-memory:
+      size: 1.0
+    virtual-cpu:
+      num-virtual-cpu: 1
+  - id: dataVM-compute
+    virtual-memory:
+      size: 1.0
+    virtual-cpu:
+      num-virtual-cpu: 1
+  virtual-storage-desc:
+  - id: mgmtVM-storage
+    size-of-storage: 10
+  - id: dataVM-storage
+    size-of-storage: 10

ubuntu_4ifaces_ipv6_ns/ubuntu_4ifaces_nsd.yaml

+nsd:
+  nsd:
+  - description: NS with 2 VNFs ubuntu_4ifaces-vnf connected by mgmtnet and 3 datanet VLs
+    df:
+    - id: default-df
+      virtual-link-profile:
+      - id: vlp-datanet1
+        virtual-link-desc-id: datanet1
+        virtual-link-protocol-data:
+          associated-layer-protocol: ipv6
+          l3-protocol-data:
+            cidr: 2001:DB8::/64
+            ip-version: ipv6
+            gateway-ip: 2001:DB8::1
+            dhcp-enabled: "true"
+            ipv6-address-mode: dhcpv6-stateful
+      - id: vlp-datanet2
+        virtual-link-desc-id: datanet2
+        virtual-link-protocol-data:
+          associated-layer-protocol: ipv4
+          l3-protocol-data:
+            ip-version: ipv4
+            cidr: 192.168.20.0/24
+      - id: vlp-datanet3
+        virtual-link-desc-id: datanet3
+        virtual-link-protocol-data:
+          associated-layer-protocol: ipv4
+          l3-protocol-data:
+            ip-version: ipv4
+            cidr: 192.168.30.0/24
+      vnf-profile:
+      - id: vnf1
+        vnfd-id: ubuntu_4ifaces-vnf
+        virtual-link-connectivity:
+        - constituent-cpd-id:
+          - constituent-base-element-id: vnf1
+            constituent-cpd-id: vnf-mgmt-ext
+          virtual-link-profile-id: mgmtnet
+        - constituent-cpd-id:
+          - constituent-base-element-id: vnf1
+            constituent-cpd-id: vnf-data1-ext
+          virtual-link-profile-id: datanet1
+        - constituent-cpd-id:
+          - constituent-base-element-id: vnf1
+            constituent-cpd-id: vnf-data2-ext
+          virtual-link-profile-id: datanet2
+        - constituent-cpd-id:
+          - constituent-base-element-id: vnf1
+            constituent-cpd-id: vnf-data3-ext
+          virtual-link-profile-id: datanet3
+      - id: vnf2
+        vnfd-id: ubuntu_4ifaces-vnf
+        virtual-link-connectivity:
+        - constituent-cpd-id:
+          - constituent-base-element-id: vnf2
+            constituent-cpd-id: vnf-mgmt-ext
+          virtual-link-profile-id: mgmtnet
+        - constituent-cpd-id:
+          - constituent-base-element-id: vnf2
+            constituent-cpd-id: vnf-data1-ext
+          virtual-link-profile-id: datanet1
+        - constituent-cpd-id:
+          - constituent-base-element-id: vnf2
+            constituent-cpd-id: vnf-data2-ext
+          virtual-link-profile-id: datanet2
+        - constituent-cpd-id:
+          - constituent-base-element-id: vnf2
+            constituent-cpd-id: vnf-data3-ext
+          virtual-link-profile-id: datanet3
+    id: ubuntu_4ifaces-ipv6-ns
+    name: ubuntu_4ifaces-ipv6-ns
+    version: 1.0
+    virtual-link-desc:
+    - id: mgmtnet
+      mgmt-network: true
+    - id: datanet1
+    - id: datanet2
+    - id: datanet3
+    vnfd-id:
+    - ubuntu_4ifaces-vnf