Added nested level class support for import swagger

Examples/Nodify.Calculator/swagger.json

@@ -311,6 +311,24 @@
   },
   "components": {
     "schemas": {
+      "AuditHistory": {
+        "type": "object",
+        "properties": {
+          "id": {
+            "type": "integer",
+            "format": "int32"
+          },
+          "createdBy": {
+            "type": "string",
+            "nullable": true
+          },
+          "createdDate": {
+            "type": "string",
+            "format": "date-time"
+          }
+        },
+        "additionalProperties": false
+      },
       "Operation": {
         "type": "object",
         "properties": {
@@ -347,7 +365,10 @@
           },
           "isGlutenFree": {
             "type": "boolean",
-            "description": "Is this Pizza Gluten Free\r\n(bool true --\u003E yes)"
+            "description": "Is this Pizza Gluten Free\r\n(bool true --> yes)"
+          },
+          "auditHistory": {
+            "$ref": "#/components/schemas/AuditHistory"
           }
         },
         "additionalProperties": false,
@@ -378,9 +399,7 @@
             "nullable": true
           }
         },
-        "additionalProperties": {
-
-        }
+        "additionalProperties": { }
       }
     }
   }