[client] Implement new vulnerability data model (#916)

Author: SamuelHassine

pycti/entities/opencti_stix_core_object.py

@@ -352,6 +352,8 @@ def __init__(self, opencti, file):
                 }
             }
             ... on Vulnerability {
+                name
+                description
                 x_opencti_aliases
                 x_opencti_cvss_vector
                 x_opencti_cvss_base_score