修复创建用户失败问题

hsweb-system/hsweb-system-authorization/hsweb-system-authorization-service/hsweb-system-authorization-service-simple/src/main/java/org/hswebframework/web/service/authorization/simple/SimpleUserService.java

@@ -65,6 +65,11 @@ public class SimpleUserService extends AbstractService<UserEntity, String>
         return passwordEncoder.encode(password, salt);
     }
 
+    @Override
+    public UserEntity createEntity() {
+        return entityFactory.newInstance(BindRoleUserEntity.class);
+    }
+
     @Override
     @Transactional(readOnly = true)
     public UserEntity selectByUsername(String username) {