支持在后台管理创建用户、禁用注册功能等功能

/kind feature

**Describe the solution you'd like**
1、注册功能：提供开关配置，按需启用或禁用。
2、后台管理支持增加和禁用用户。
3、支持密码重置。


**Anything else you would like to add:**
[Miscellaneous information that will assist in solving the issue.]


**Links to the design documents or others:**