Implement Topaz adapter

examples/topaz/README.md

@@ -30,8 +30,9 @@ docker compose down -v
 ## What the example proves
 
 - Topaz's v3 manifest can express flex-auth's canonical object types
-  (`user`, `group`, `tenant`, `knowledge_base`, `document`) and
-  relations (`member`, `parent`, `owner_team`, `reader`, `steward`).
+  (`user`, `identity`, `group`, `tenant`, `knowledge_base`, `document`)
+  and relations (`identifier`, `member`, `parent`, `owner_team`,
+  `reader`, `steward`).
 - The Markitect fixture data
   (`examples/markitect/resource_manifest.yaml`, mirrored here) seeds
   the directory without translation.