Merge branch 'Autohealing' into 'master'

Autohealing descriptor packages

See merge request !191

autoheal_ns/autoheal_nsd.yaml

+nsd:
+  nsd:
+  - description: autoheal_nsd Network Service
+    designer: TATA ELXSI
+    df:
+    - id: default-df
+      vnf-profile:
+      - id: autoheal-basic-1
+        vnfd-id: autoheal_vnfd
+        virtual-link-connectivity:
+        - constituent-cpd-id:
+          - constituent-base-element-id: autoheal-basic-1
+            constituent-cpd-id: vnf-cp0-ext
+          virtual-link-profile-id: mgmt
+    id: autoheal_nsd
+    name: autoheal_nsd
+    version: 1.0
+    virtual-link-desc:
+    - id: mgmt
+      mgmt-network: true
+      #vim-network-name: management
+    vnfd-id:
+    - autoheal_vnfd

autoheal_vnf/autoheal_vnfd.yaml

+vnfd:
+  description: autoheal VNFD package enabled with Autohealing
+  df:
+  - id: default-df
+    instantiation-level:
+    - id: default-instantiation-level
+      vdu-level:
+      - number-of-instances: 1
+        vdu-id: autoheal_vnfd-VM
+    vdu-profile:
+    - id: autoheal_vnfd-VM
+      min-number-of-instances: 1
+      max-number-of-instances: 2
+    healing-aspect:
+    -   id: autoheal_vnfd-VM_autoheal
+        healing-policy:
+        - vdu-id: autoheal_vnfd-VM
+          event-name: heal-alarm
+          recovery-type: automatic
+          action-on-recovery: REDEPLOY_ONLY
+          cooldown-time: 180
+          day1: false
+  ext-cpd:
+  - id: vnf-cp0-ext
+    int-cpd:
+      cpd: vdu-eth0-int
+      vdu-id: autoheal_vnfd-VM
+  id: autoheal_vnfd
+  mgmt-cp: vnf-cp0-ext
+  product-name: autoheal_vnfd
+  provider: TATA ELXSI
+  sw-image-desc:
+  - id: ubuntu20.04
+    image: ubuntu20.04
+    name: ubuntu20.04
+  vdu:
+  - description: autoheal_vnfd-VM
+    id: autoheal_vnfd-VM
+    int-cpd:
+    - id: vdu-eth0-int
+      virtual-network-interface-requirement:
+      - name: eth0
+        position: 1
+        virtual-interface:
+          type: PARAVIRT
+    name: autoheal_vnfd-VM
+    sw-image-desc: ubuntu20.04
+    virtual-compute-desc: autoheal_vnfd-VM-compute
+    virtual-storage-desc:
+    - autoheal_vnfd-VM-storage
+  version: 1.0
+  virtual-compute-desc:
+  - id: autoheal_vnfd-VM-compute
+    virtual-cpu:
+      num-virtual-cpu: 1
+    virtual-memory:
+      size: 1
+  virtual-storage-desc:
+  - id: autoheal_vnfd-VM-storage
+    size-of-storage: 12