add unauthorized database as response for open api

Author: RIT3shSapata

.factory/settings.json

@@ -0,0 +1,5 @@
+{
+  "enabledPlugins": {
+    "core@factory-plugins": true
+  }
+}

docs/api/components/responses.yaml

@@ -21,6 +21,12 @@ Unauthorized:
     application/json:
       schema:
         $ref: ./schemas.yaml#/HTTP-Error
+Unauthorized-database:
+  description: User does not have access to the database resource, or database resource does not exist
+  content:
+    application/json:
+      schema:
+        $ref: ./schemas.yaml#/HTTP-Error
 Conflict:
   description: Resource already exists under that name
   content: