add casdoor auth provider

Author: akriventsev

docs/AuthProviderList.md

@@ -17,6 +17,7 @@ It's very common that your auth logic is so specific that you'll need to write y
 - **[Postgrest](https://postgrest.org/)**: [raphiniert-com/ra-data-postgrest](https://github.com/raphiniert-com/ra-data-postgrest)
 - **[Supabase](https://supabase.io/)**: [marmelab/ra-supabase](https://github.com/marmelab/ra-supabase)
 - **[SurrealDB](https://surrealdb.com/)**: [djedi23/ra-surrealdb](https://github.com/djedi23/ra-surrealdb)
+- **[Casdoor](https://casdoor.com/)**: [NMB-Lab/reactadmin-casdoor-authprovider](https://github.com/NMB-Lab/reactadmin-casdoor-authprovider)
 
 Beyond ready-to-use providers, you may find help in these third-party tutorials about integrating more authentication backends: