add swagger-yml.ftl

generator-web/src/main/resources/template.json

@@ -167,6 +167,11 @@
         "id": "73",
         "name": "sql",
         "description": "sql"
+      },
+      {
+        "id": "74",
+        "name": "swagger-yml",
+        "description": "swagger-yml"
       }
     ]
   }